One night at McChord Air Force Base, I was dispatched to check out the security fence where an alarm had gone off. The fence was at the end of the base runway. When I got to the scene, I found a raccoon was the culprit, so I ran around and flapped my arms to scare the animal away.
Suddenly an air-traffic controller came over the public-address system and announced loudly, "Attention to the airman at the end of the runway. You are cleared for takeoff."
"Some people are uncomfortable with the idea that humans belong to the same class of animals as cats and cows and raccoons. They're like the people who become successful and then don't want to be reminded of the old neighborhood." - Phil Donahue
The word "snorkel" comes from the German word "schnoerkel", which was a tube used by German submarine crews in WW2. The subs used an electric battery when traveling underwater, which had to be recharged using diesel engines, which needed air to run. To avoid the hazard of surfacing to run the engines, the Germans used the schnoerkel to feed air from the surface into the engines.