Going that extra mile?

Diane, a former boss of mine, posted the following question on her Facebook page (comments follow and the names have been truncated to protect the innocent):

Do you think it would be too brazen of me to call the piano tuner and ask him to stop at Winn Dixie and bring me a small carton of 2% milk on his way over here? I would pay him back:
2 people like this.

Jane LOL Go for it.
Ben Not at all! How about some "tune-a-fish" too?
Tim Um. Yes?
Diane Ha ha ha ha ha, so funny! But seriously, how well do you know him? This might start a trend with service people!
Joe You'd have to leave him a" note"
Diane Badaboom - cchh! Ladies and gentlemen, Joe and Ben will be here all week!
Jayne hahahahahahahah!!!! hahahahahaahahah!!
Mary Go for it. I'll bet you have a 50-50 chance of getting the milk! Make sure you have some cookies to give him while he is there!

My question is: How would you feel if one of your regular customers called the office and asked the crew to pick up an item or two on the way to the job (assuming there was a store along the way)? Is this something you'd consider a reasonable request for a good customer? Is it something you'd be willing to do once or on rare occasions?

What have you done to go that extra mile for a customer? Feel free to leave your comments below or send them to me at: djacobs@questex.com.