It was a good thing I'd already gone to the bathroom

The sinks in the bathroom at work are so close to the wall that one has to stand directly in front of the paper towel dispenser, even bumping into it, in order to wash his hands. Over the weekend, unbeknownst to me, they changed the old dispensers in the bathroom with new, motion-activated ones. Imagine my alarm when I went to wash up and heard “WHIRRRRRRRR!!!” right next to my ear!