Mr. Beanz said:That's for sure! I've had a few guys latch on then continue on and say, "thanks, I needed a short breather!". That's cool!
I was doing a century one Saturday with a friend. We caught up with these two guys and sat in behind them for awhile. We then thanked them but explained that we had places to go and were riding faster than they. I didn't want to insult them and call them a bunch of squirrels, but that was the reason we left them in a hurry.