WATCH OUT for Cages!!!

For three reasons:

Reason One:
 They are not watching out for you:

Reason two:
 They usually win whether it was their fault or not. 
And often it is not.

Reason three: 
Pictures of smashed bikes are ugly,
 pictures of smash, mangled and dead riders, are uglier.

PS: They can't put people back together when they look like they went through a meat grinder.