[Hyuroi]

I had that happen to me earlier today. Some cleric pants dropped, and it was on sequential so I got it. Someone other fighter the party asked for them (the cleric had said he didn't need them) so I stupidly dropped them instead of just trading them. Well, whoever got them next wouldn't fess up to it. :/

Other than that, I've really never had the problem, since I prefer to party with people I know or I usually just solo.