Lending money to a friend is always a delicate thing... I still recall having $20 outstanding debt with one of my highschool classmates, and hey, I'm 43 years old now... hahaha. It's something you (or me...) can't just forget anymore and it should really be done only with the necessary precautionary ideas behind this action. You'll learn a lot by lending/ borrowing or doing money transactions with people around you, that much is for sure! Learn fast!