Language fail!

I went to get the tires on my scooter replaced today. I dropped it off with the quote of 2400NT. He said he'd call me back in a half hour to say it was ready. He called back, and thinking he said my bike was ready, I said "Ok, ok". What he really said was "I'm replacing the brakes, too". 

There goes an extra 500. That's ASS for ya (the name of my shop)....