[SolidRedState]

Just exactly how the heck does that even happen?

Explosive diarhea?

[Free in Texas]

If the domestic water riser in a tall building loses pressure from an interruption of water service or the domestic water pumps go down the piping can suck a lot of air into the system.

It the air is not bled out when the water service is restored you'd be amazed at what the combination of compressed air and incompressible water can do coming out of a sink faucet or toilet. Let's just say that "stuff" can go everywhere!