If you're in the shower and the hot water is running out, what do you do?
Accept that the shower is over and get out immediately
Leave the water alone and enjoy what's left
Turn it down a little bit to try to conserve it longer
Turn it up to maintain the temperature for a few extra seconds
Was it your fault?
Damn right it was.
No, I never run out the hot water. Someone else must have used too much earlier.