[Azselendor]

I used to have a cat that would be lying down in a room and suddenly get up and take off running straight for the sliding glass door. Normally she'd stop and veer off for her food dish before hitting the glass, but one day while I was changing the bathroom cabinents, I put the mirror leaning up against the glass door.

She took off running and just slammed into the mirror, she didn't break the mirror, but you could tell that the poor cat got knocked for a loop. She sat there dazed for a minute, and resumed running.