Thanks for all the replies. I enjoyed reading them -- especially the ones that told me it was a learning experience and not to laugh at myself --- except I do still find some humor in the whole situation. Yes, it was for two tubes and the labor was expensive -- $7.00 per tube. On top of that I had to wait 3 hours before the LBS could get to it. I am going to study up on how to change a tube but hopefully I won't need to learn that lesson for a while YET. The only thing the LBS taught me was how to fill the tire with air. Even when I take a maintenance class, I'm sure I will forget how to do it before I need to do it. And thanks for "dictionary" on bike terminology. Boy, was I way off on what I was talking about. You're also right, I better learn how to do bike maintenance if I don't want to haul it to the shop every time I have a problem. I just figured my bike was "good" enough that it wouldn't ever have any problems. Thanks again for all the help. It is refreshing.