Did you shoot someone and he crumbled into the ground, leaving outdated currency or treasure? Corgi Guy is interested in it. In return, he'll give you weaponary or fun kemono he found laying around,

(However if you give him stuff "done for the lulz" or LOLCATS or stuff like that he'll hurl at it at your noggin

(yup he looks more like a ninja than the Resident Evil 4 Merchant)