Happened to me too. Unfortunately, lending money or items to a friend is very dangerous if that friend is precious. When it comes to money, I'd say generally s

Happened to me too. Unfortunately, lending money or items to a friend is very dangerous if that friend is precious. When it comes to money, I'd say generally speaking: lend as much as you can afford to lose. Like short-term, high-risk investments: It is a high-risk investment, you could loose a friend. On the other hand, the bond could become stronger and he will owe you one, but friends who count who owes how much to whom are in bad territory anyway...