Last time I went to a public bathroom, I wondered, why bathroom stalls don't go to the floor. It looks like there's no privacy there at all. I've come up with two possible explanations: first of all, they might be easier to clean. Or it's done this way for better air circulation. But I've found out these aren't the only reasons. Here's the answer to this question and 10+ other hidden features of everyday stuff. Learn more about your ad choices. Visit megaphone.fm/adchoices