COCC StairMasters

Why is it when people see a person fall we tend to cover our mouth and groan out with an, "ohhh..." Then after realizing that they're okay we bolt out laughing?

That happened to me a few times when I attended Central Oregon Community College (seemingly decades ago). The school is built on a hill side, with long - relentless stairs leading to each building. Seemed like there was always a student slipping and tumbling back down to the bottom. I made this tee to remind those to look out below!