Meows and barks are fine. What is clearly out of line are bleats, brays, clucks, caws, coos, cackles, whinnies, squawks, screeches, bellows, hisses, purrs, snarls, chirrs, yaps, yowls, peeps, twitters, drums, croons, gobbles, whickers, hums, warbles, clatters, whirrs, trills, and moos.

I love the pearl clutching concerns. If your pilot has a multi-tasking level where they can't "focus" on flying because they're making animal noises, you're going to die taxing away from the gate.