Dent in frame
Even the nastiest looking dents will normally hold together long enough to ride out.
Broken frame
Assuming the concussion you got wasn't too bad, what can you do to get the bike home?
Broken handlebar or seatpost
Turn a pain in the ass into a comfy ride home.
Twisted handlebars
Steering straight and still riding in circles?
Saddle breaks
How do these things come loose from their rails anyway?