First of all, poor you :P next time ask beforehand the details! Now as far as it concerns me i can say i am pretty lucky in this field. I only do favor to my close friends and they are few or my close relatives and the reason is simple, i trust them. Then as i said to you too i ask about the details and if it's something i can and want i agree. The bad things that have happend is when i try to help other friends and it results in undervaluing the things i did for them like go in a place they are bored to go by themselves or help them with simple things in their life-work but in general i don't do ''big favors'' to anyone who is close to me