This Scared Me So Bad, I Was Glad I Was Sitting…

So, I had to go to the bathroom. And someone was just exiting a stall, they stopped and washed their hands. That's when I got the &*^% scared out of me!

I am not sure what is going on with the sink, and there is no real description of what is happening...

I yelled out to the handwasher,

Dear God! What is that noise!? Good thing I'm sitting!

Here's what I'm talking about:

I had never experienced that before. I always use the sink on the far right - this is the sink on the far left. The right one sounds like a sink. Normal water, normal sound. But I don't know what the hell is happening to this one!

I think that I'll stick to using the sink to the right. I was gonna put a sticky note near the Satan sink, but I don't want to ruin the awesome surprise.