If there's a story that explains, please let me know.

Maybe he just likes it there, sorta like an eternal spa.

This is the funniest reply.

In some canons he has, like the when day breaks one.

He is slowly developing an immunity to the acid

Why adapt when you can get free snacks everytime they let you out?

Idea: shoot 682 with the nerfing gun

already been tried https://youtu.be/Qy0t8DB1OOw

for him its like a mountain dew river lol

Maybe they're constantly changing the formula of the acid slightly, so it can't truly adapt to it
And the acid doesn't actually damage it, it just prevents it from regenerating
It's not harming it, just keeping it in a kind of stasis

that's really smart

I honestly never thought of that.

Waffle actually thought of it lol

We’ll you see, it uses the matter from the acid to regenerate what the acid dissolves as it’s dissolving it, making it a endless cycle.

A good way to get rid of 682 may be to just toss him into 2915, not really to terminate him, just to contain him

I've said it once and I'll say it again.

Use the dragonslayer's cold iron sword, it prevents healing.

I think it's 5514 but I'm not sure

He’s high in that stuff. If we remove it he gets the munchies, and munches in reasearchers.