Just a bit of fun, I'll start:-
1) Drink too much at the bar near Rond Point des Saules on saturday night and feel rough at the start.
2)Ride your new TT bike with ultra aero stretched out position, then withdraw after 300km with Schermer's neck.
3)Full of nervous energy at the start, ride like a maniac and crash out after 10km.
4)Start the ride with new shoes, bike, saddle,cleats,(all badly adjusted) and new shorts (fresh from the packet).
5) start the ride with worn out versions of everything 4) above.
6) Get so sleep deprived that you wander round in the night without a bike asking locals where the 'secret' control is located.
7)over to you....Dont worry about repeating the same ideas in different ways.