I've been spinning for a while and never had anything close to that happening... Guess I'll have to keep at it!
What I'm impressed with is how you pressed on with the exercise without your legs giving out or something. You're a trooper!
Oh, and gmailtrooper, piano pedals? Really? What were they doing with the pedals exactly? Again, something I've done for years and still don't have that result.
I once had a satisying set of sneezes tho...