I heard of a guy dying when a co-worker stuck an air line up his butt.
Then there was the German zookeeper a few years ago who died when trying to, er, assist a constipated elephant. The animal let loose and the man drowned before anyone could pull him out.
Yup, it happened. At a truck tire repair facility. Dude was charged for manslaughter. PSI on a commercial repair air hose is extremely high (so you can “seat” a tire on a wheel round and inflate it rapidly).