We were on a snorkel trip,there was a couple next to us who never snorkeled. The guy is like all confused about the flippers,the snorkel,the mask ???? Flippers go on feet,snorkel into mouth and mask on face! The boat stops,we jump in,he jumps in.... I come up and look at him and his mask is on upside down?.....The nose part is on his forehead and the top of the mask is stopping him from breathing through his nose !!!! I was peeing from laughing so hard....