I once pllayed a character who secretly added to the party funds.
The character had reached a skill level where he was able to forge his own money, but was too paranoid to go hog wild with it. Instead he decided to simply pad out the expense account a bit on the theory that a little bad cash mixed in with the good would be less noticable. Basically this worked like "divide the profits by party size +1" in reverse: "divide the bill by party size +1 and pay the extra with funny money".
The other players never caught on. Which made for one of the best moments in that game (for me at least). On the day when our boses finally burned the party (as I knew they would) and we are all wondering where to run and what to do; my guy reaches into his little case marked "for emergency only" and pulls out a full set of fake ID's for the party and a big stack of cash and says "now we run, and I can make as much of this as we need to do it"

The other players never caught on. Which made for one of the best moments in that game (for me at least). On the day when our boses finally burned the party (as I knew they would) and we are all wondering where to run and what to do; my guy reaches into his little case marked "for emergency only" and pulls out a full set of fake ID's for the party and a big stack of cash and says "now we run, and I can make as much of this as we need to do it"
