I sewed a pair of jeans for a little guy who has a trash run and ripped them on a dumpster. You would have thought I gave him a million bucks, he was so grateful.
Also hemmed some pants for a friend and her DH, did not mind doing it for them as they are nice people. Then her daughter came to visit, went shopping and bought 3 pairs of pants, would I hem them? They did offer to pay, so I looked on the WWW to see what people were charging, asked them about half of that, they thought it was outrageous. No more hems for them.