When wearing an egg throughout the day, try to remember about it when you go to the bathroom. The egg might come out inadvertently when you do relieve your bladder or your bowels, so be prepared to catch it!
It is very important to completely relax your muscles when you use the bathroom. If the egg comes out it means that you probably had enough exercise for today and it is time to rest.
However if you forgot about it and dropped it in a toilet bowl don’t get embarrassed, it has happened to the best of us! Inspect the egg for cracks. If it is intact you can keep using it after you DO wash and sterilize it.