Yep

Don't logic the poor moody fish

hey everyone this dude's three ichtyologists in a trench coat get 'em!

Yes

Perhaps his existential crisis is a real "fish out of water" moment

Obviously it leaves the water for a cigarette break. Have you never seen fish smoking on the river bank?

If you understood how badly Big Tabacco wants to get rich, you would not ask that question.

Not really the same thing...

Ah yes the ear hole, surely that is what you meant:-P.

It's the closest analogy that makes sense at a glance. It's clearly not the mouth, and since we mammals only have one other air vent, that just leaves the nose. However in actuality they have non-breathing scent detectors that are totally separate from three breathing system. It's like if your nose could smell but not be breathed through; instead you breathed in through your mouth and had slits on your throat used to exhale.