Guys, you are derailing his whole idea. Like he said, he'd like to see a system where:
Guy 'A' gives Guy 'B' "x" amount of toricredits, in return 'B" deposits some items into a special inventory where they stay for a duration of time agreed upon by both 'A' and 'B'. If 'B' fails to return 'A"s money, 'A' gets to keep the items. Logic dictates that the items should be worth more than "x", so as to avoid 'A' being ripped off.
Perfectly good idea. Could lead to some interesting, EVE Online-esque economic tricks where 'B' manages to drastically lower the value of the deposited items so as to produce a profit by not paying 'A' back.
Supported.