An office interruption

I am in the bathroom (toilet, damnit… loo, bog, lavatory). I vaguely notice a loud noise.

I return to my office, and my computer is dead. Everyone else is sprouting out into the corridor too; clearly their computers are also dead.

“It sounded like something exploded,” says my boss. “I think the problem’s our UPS.”

“What’s a UPS?”

“An Uninterruptible Power Supply.”

Hee hee.