There’s a common misconception about bulls: that they get mad at the color red.

In reality, they couldn’t give less of a shit about color. In fact, they’re literally colorblind to the color red, so when they hit a dude carrying a red flag, it’s not because of the color of the fabric — they might just really hate that dude.

Overall, bulls tend to go after whatever is moving in the area. One teacher tried to tell his students about this phenomenon, but seeing that they weren’t really getting it, he decided to try something else: throwing them directly into a bull pen and telling them not to move. If they didn’t, his point would be proven; if they did, well, he wouldn’t have to deal with them anymore.

A problem solved either way!