Changing a couple of faucet washers yesterday. Cut the water off and removed
the washers to take to Lowe$ for comparision. Planning on being gone for a
couple hours so I filpped the water heater breaker off just in case sine the
water was off. Got back, fixed the faucet, water and breaker back on. Got up
this am and no hot water! Flipped the breaker a couple of times and was
preparing to remove the elements and noticed that the thing was working
again.

Question is: Do these things have some sort of a protection circuit or do I
have a flaky breaker?