Originally Posted by
Rob P.
The Sheldon Brown link is OK for basics but it really isn't the whole story.
If all else fails, take the bike back to the LBS and have them solve the problem and show your friend how to properly remove the wheels.
Sheldon's article is by no means the whole story, but is a pretty good start.
As far the the LBS letting the bike out w/o basic QR training . . . in my day (which ended in 1995) we made a sincere effort to explain and demonstrate proper use of quick releases. QR's seem to cause a lot of confusion for many new cyclists. Most recently I tried it with my 77 year old father. He was able to do it right then, but not the next day.