Donating a kidney is one of the biggest things you can do for someone, potentially saving a life.

In a new study, 28% of people said they would donate a kidney to a friend. The study also found that only 22% think a friend would donate a kidney to them.

In other words, people think they are more generous to their friends than their friends are to them.

The study also found 31% of people would loan a friend $500 if they were struggling. Eighteen percent said they would stand by you if you cheated on your husband or wife.

Fifteen percent would bail a friend out of jail, and 7% would invest money in a friend's business idea.