"If it's always one way, resentment can build up," says resident psychologist Jo Lamble.
A viewer, Stephen, wrote in, saying he only lends what he is prepared not to get back.
"It's like going to the casino, you're going red or black," says accountant Anthony Bell.
Anthony says banks get you to signmany forms so some paperwork can also play a part.
"Understanding the terms between friends, that's pretty important."
What do you think the rules should be when lending money to friends? Tel us below...
Paulini has lived a life of highs and lows - from amazing musical success down to the trauma of an abusive ex-boyfriend. She shares her story.
VideoFriends are like bras - they're always there for support, but sometimes they can be a bit difficult. - Natasha, NSW
Kurt Fearnley: I was relief teaching in Blayney when I met Kurt as a young school boy. The first thing that struck me was his smile and contagious positive outlook at all times. I see nothing has changed with this outstanding Australian. Although I never saw him again, it is a testament to the power of his personality that I have not forgotten him more than 15 years later.
Email Sunrise
It's working great!