I was thinkin a game of basketball or even dodgeball wouldn't go amiss. If you're willin I'll add a word or two to this post and see who all wants to join in.
Not really a merchant, per se. Smugglin would be a great word. If there's someone needs a bit of protectin, I can do it, or if they have some goods they want moved off-world, I can find buyers and move the cargo. Sort of like the caravans that they used to have on Earth-that-was, only it's just me and my boat and my crew.