SUF De-Mastering

[Heretic]

I think this one was better:

The Stupidest, Dumbest, Most Idiotic Thing You Have Ever Done on a Bicycle

What is the stupidest, dumbest, most idiotic thing you have ever done on a bicycle? Perhaps depending on the number of likes, we will compile a list of finalists, and have a vote. Maybe @Glen.Coutts can influence the Wahoominati to give the winner some points. Multiple entries are allowed.