There's like no logical reason to do anything besides swallow it. It isn't dangerous, it's immediate, it's the easiest/lazy route, it doesn't waste paper (not that I give a shit about that), it doesn't ruin furniture, and unless you're eating ten packs of gum a day it isn't going to affect your health (due to the sugar; not the debunked urban legend).
Oh, and your shit will sometimes have gum in it. It'll cheer you up.
Why not use a napkin or crumple a scrap of paper and spit the gum into that?
Better yet, though, don't chew gum at all. In my opinion the sale of chewing gum should be banned.
This, not because i agree with you, but because i want a world where gum prohibition is a thing and people make some weird bootleg gum to sell at chew-easys.
Also, i just spit mine into a trash can...
-Go outside if not outside already
- ball gum up in mouth
-spit gum out just slightly in front of body
-kick falling gum into air with foot (choice of foot is up to individual)
- give middle finger to judging "mature" individuals
-repeat as necessary
I came in here just to say this.