RKMBs Forums .::Important::. off topic and offensive posts How much $$ is too much to lend?

I'd like to know other people's take on lending out money (no I'm not looking for any). How much is too much? Is 10 bucks a lot? 5? 1? A friend of mine tried to ask for about 150 dollars for his girlfriend's hotel room. He said she'd pay me back the second she got off the plane. THAT is too much. So I say anything over 20.