Though some would take umbrage at the term, I consider myself an Autolycus, and like the Swan of Avon's sprightly soul I am 'a snapperup of unconsidered trifles', to whit a trader in merchandise not to be found on a market stall. I ask not why you want a thing, only what you're willing to part with for the having. Trick, innocuous though he may seem, makes my nose twitch, and seeing how it's kept me out of serious trouble this many a long century, I'll follow its lead, and not cross him.
Trick: Arval's . . . a necessary grey area, let's call it, a procurer in almost every sense.