You know you're too tired to be vertical when...

You accidentally walk into the men's bathroom at school.

Oh, but it doesn't stop there.

I should continue with "you accidentally walk into the men's bathroom at school... and your first thought isn't 'AHHHH! Wrong bathroom!' it's "huh. urinals. That seems like an ineffective way to use the space in a women's bathro... AHHH! Wrong bathroom!"

If I was like, a firefighter, instead of just a confused bathroom user, that extra 10 seconds could have cost little Billy his life.