Delta Airlines - no more comfort turkeys, gliding possums known as sugar gliders, snakes, spiders

[The Velveteen Ocelot]

52. I don't think they'd notice if I brought my emotional support tarantula

who just rides quietly in my hair.

But seriously, there can be situations where animals (usually dogs) are legitimately helpful to people who need them because of anxiety or PTSD or some such condition. On the other hand, there are some animals that just don't belong on airplanes. For example, there was the emotional support pig who shat all over the plane:

The passenger was allowed to bring the pig on board as an "emotional support animal" under Department of Transportation guidelines, a US Airways spokeswoman said.

Apparently, it was not meant to be. Before the plane took off, the passenger and her pig were kicked for being "disruptive," spokeswoman Laura Masvidal said.

How disruptive? Fellow passengers told the Hartford Courant that the big brown pig stank up the cabin of the tiny D.C.-bound aircraft and defecated in the aisle.

Phelps watched in amusement and horror as the pig began "dropping things" in the aisle while his owner stowed her belongings. When she tied him to the armrest and tried to clean up after him, he began to howl.

http://www.cnn.com/2014/11/30/travel/emotional-support-pig-booted-flight/index.html