Woke up thinking about this, MT. If over pressured, wouldn't just go "Pfffttt" and stop filling? I dunno and would be fun to try and blow one up just to see. Thinking it would just find the weakest spot and blow that out and not go off like pipe bomb?
But try it from around a corner cowering behind a blast shield and under a desk, lol.
We need the mythbusters!
edit; found this https://www.google.com/search?q=hydr...45%3B333%3B215