just wondering where you all stand on fixing friends bikes. several of my friends have recently had me do some work on their bikes and i've successfully replaced some f'd up bottom brackets, brake cables and such. The bikes in question are always beat up old motobecanes, centurions, or panasonics. Bikes that if taken care of will last, but aren't necessarily built with the best care and components. Anyways, after i finish and give the bike back to a happy owner they always find more problems (of course) and I am no longer able to have a non-bike conversation with them, or even worse they blame me for something malfunctioning that I didn't touch in the first place. So, is it worth all the grief? Is there a way around this? should I write out receipts showing what I did work on even though no money is changing hands? Should I just recommend a good bike shop to them even though they know that I rebuild my own bikes and have a full toolkit? Hell, if it was up to me I'd just tell them to spend a little cash, get a GOOD bike and take care of it! (i.e. don't leave it out in the rain!)
Thanks for any insights or comments.