I hear the day after is a great day for plumbers due to clogged bowls.
I should have knocked on wood. Getting the smoker ready for a rack of ribs today, I walked into the garage. Suddenly the water heater sprang a leak. Not so bad this time because I had previously installed a 3/4 turn ball valve on the water heater supply line. Lost about a gallon of water on the floor. Got it turned off quickly and went back to starting the ribs for a long, slow cook.
Oh well. I get a new water heater, some good food and I smell like cherry wood smoke.
FWIW. Install a ball valve to shut your water heater supply line rapidly. Do-Do happens. The toilet bowl still works great :-)