how to scare the poo out of oneself

Check into hotel, alone, for business travel.
Close bathroom door before bed as hotel has a drippy bathtub faucet. Again.
Wake up in the middle of the night needing to potty.
Stumble toward bathroom door that you totally forgot you closed.
Freak the hell out as you run into another person in your room who, um, happens to be you in a mirror.