If you even care to know why I shared this pointless idea. It's because, I came up with the crazy idea to make dad hats that could tell the family what kind of emotional state dad was in based off his brain waves. However, after doing more research on this idea. I released it's still to early for that kind of product. I also noticed that someone is already doing it.

Employees' brain waves are reportedly being monitored in factories, state-owned enterprises, and the military across China. The technology works by placing wireless sensors in employees' caps or hats which, combined with artificial intelligence algorithms, spot incidents of workplace rage, anxiety, or sadness.