friend trying to rip me off .......

I do a lot of work for a friend. He finds parts and there's not much for $$ changing hands. When there is $$, it's agreed on before and doesnt get altered - we've both been doing this for years. He's also my 1st call to help lift, or knock down, or give a hand - and I'm prety sure I'm his...lol. I also do a ton of work for strangers and customers. Someone that just charges you for weeks of time on a job that takes a day or two is not someone that gets a second chance - friend or no.