What would you do if your best friend totally betrayed you?
Say, they were in a life-death situation, needed a large sum, and you lent it to them--with a legal promissory note--but once they had the cash they refused to pay you back, even threatening to declare bankruptcy so they wouldn't HAVE to pay you back. Let's say you lent your best friend tens of thousands of dollars--or whatever you would consider a very large sum. Let's also say that law enforcement and the courts would be no help to you since bankruptcy is legal in the US.