"One Got Fat" is a bike safety PSA that looks unlike any other PSA you've ever seen before. (Unless you've already seen it. In which case, move right along.)
It starts out with a group of kids wearing monkey costumes and ends with most of them presumably dead. In between, some poor decisions are made and a picnic basket gets fought over. As with anything involving monkey suits, it's 100 percent unsettling.
Watch the HuffPost Live clip above for a taste of this vintage PSA, then head to Archive.org to see the entire film.
Here are some intentionally funny PSAs.