Too many numbers? There are two important points to take away from all this talk of fatality and injury rates:

1. On a per-mile basis, the odds of being killed or sustaining a serious head injury while riding a bicycle are about the same as the odds of being killed or injured while out for a walk.

2. On a per-capita basis, the odds of being killed while riding a bicycle are nearly the same as the odds of being killed by a bolt of lightning (this author has, in fact, been struck by lightning -- albeit indirectly -- so he is well aware that "extremely improbable" is not quite the same as "impossible"); the odds of sustaining a serious head injury while riding a bicycle are about half the odds of sustaining a serious injury while out for a walk.

and a side point...

Being drunk really screws up your ability to do anything right.