''Now you'll see, you bloody fool'', Doyle said with a villainous tone, as he was casting spells all over the place. It was six in the morning and he had just broken into the cauldron shop on the other side of the street of his apothecary. He bought Slug & Jigger's Apothercary a while back, not long after leaving Hogwarts. Again. It was a true bargain and it enabled him to both earn for a living, which was less important to him, and to experiment with potions, which is something he really loved. Surely, he would cause a couple of explosions or toxic incidents from time to time, but hey - you couldn't rush genius, could you? He redecorated the shop, especially his little laboratory in the back, and started having a blast. He wasn't all to good to the customers, some of them left cursing the day they entered his shop, but since he was a monopolist in Diagon Alley, he didn't exactly care. Well, he didn't exactly care under any circumstances. Period.
One thing did bother him, though. On the other side of the street, opposite to his store, was a shop called The Perfect Cauldron. As if the name wasn't horrible enough, it's owner, a certain Octavius Blotter, was a horrible, snobbish prick who constantly complained to Doyle about how he should run his store and how his experiments decrease his income. He was also very, very annoying. Doyle tried to discuss the matter calmly (meaning, yelling at the guy, insulting him and ultimately ignoring his stupid visage), but the guy actually sent some guys from the Ministry to inspect Doyle's store a couple of times just out of spite. Of course, being a peace loving creature, Doyle decided to brutally retaliate after each visit, devising a more sinister plan each time. Of course, Blotter never stopped and Doyle retaliated even more. He liked that, if you'd ask him honestly, he liked the stimulative atmosphere and the challenge of plotting something more vile each time, but he'd rather spend time in his laboratory than deal with Blotter. But, some things in life were inevitable. Vendetta was certainly among them.
After the most recent incident, Doyle devised a new plan that involved him brushing upon his Trasnfiguration spells. Early in the morning, he broke into Blotter's shop, which wasn't all that guarded if you'd asked Doyle, and decided to transfigure his cauldrons into guitars, sieves and badgers. It took him a while to organise all of that, but before opening hour, Blotter would be the owner of a very fine guitar and sieve shop, overrun by wild, hungry badgers. Of course, Blotter could prove nothing on Doyle, and he had already secured an alibi, which made this endeavour all the more fun. ''Good luck, you prick!'', Doyle said as he exited the store and went back to his own.
(...)
The sight was absolute heaven. Blotters initial scream was something he would replay in his mind for months after and the scene of him, scared senseless, running out followed by a pack of badgers was pure delight. Blotter, of course, knew who had done that to his shop, but he could not prove anything on Doyle. This made the experience even more fun. Watching from the first floor of his shop, Doyle carefully observed and memorised every gesture, every word Blotter said and watched him, finally, trying to undo all of his spells. He would succeed, eventually, but watching him waste time on that was more than enough satisfaction for Doyle.
He then heard a call from downstairs. Someone was inside the store. He was so immersed in his victory that he completely disregarded the store. ''Crap, someone might have come in and robbed me blind'', he said to himself and then stood up, limping slowly downstairs to see his guest. As he was walking downwards, a sudden thought came to his paranoid mind. What if the guy's another plot by Blotter?, he wondered. He slowed down so that his guest couldn't even hear him. As he came down, he peeked behind a shelf. Good, he's a good deal inside, which means I have space, he thought to himself and started limping behind the shelves so that he came behind the well-dressed, handsome-looking man. Good thing I put in new floors, otherwise I'd be screwed, that was the last thought Doyle had before he drew his wand from his cane (something he seldom did), grabbed his guest from behind by the neck and pointed the want to his face. ''Okay, fella, I don't know who you are, but if Blotter sent you, you better get the hell out of my store, understood?'', Doyle proclaimed and then turned around to see if Blotter had been watching. Tick. Tock. Tick. Tock. Where is he? Tick. Tock. Tick. Tock. He should be watching this, it's his game, after all! Tick. Tock. Tick. Tock. And finally, nothing happened.
After a couple of minutes, Doyle let his guest go. It wasn't any plan of Blotters, he was certain now. Oh well, the costumers are never satisfied with me, anyway, he could care less about the impression he left, even if the guy just went away. ''Welcome to Slug & Jigger's Apothecary! I am neither Slug, not Jigger, but this is my store. I am... sorry... I guess, but it was really a state of necessity. I have trouble with... rodents'', he said darting a gloomy look towards Blotter's shop, ''but that't not the matter at hand now. Can I help you anyhow, or should I just open the door for you?''. He grinned at Paula and returned his wand to the cane.