We may be evil, but we aren't chaotic. A professional has standards.
skulblaka
I play a cleric in my party. Previously, we've been asked to recover and return a certain plot-important NPC who didn't exactly want to be transported...
We killed him, transported the corpse, handcuffed it, and then raised him at the destination. It's a lot easier to transport a body than a live half-elf who is actively trying to escape.
Or its weirder, older cousin, Earth Defense Force
Just because you're in prison forever doesn't mean there isn't further punishment that can be doled out. Officially, solitary confinement is a pretty catch-all punishment for misbehavior, and extended stays in solitary can and will drive humans insane. Like, nonfunctionally insane, can no longer interact with other humans without extensive therapy. Unofficially, prisoners can get the shit kicked out of them on the regular by gangs of guards, or specially targeted for constant "random" shakedowns, have rumors spread about them among other inmates, the list goes on.
For non-lifers, you can always get time tacked on. For lifers, you can paint a target on yourself for guard harassment or lock yourself into solitary until you're no longer a human being. And the constitution enshrines slavery as being specifically allowed as punishment for a crime in Amendment 13, so unfortunately the prison is well within its rights to do so and punish for noncompliance.
These are important questions that will be asked by your players if they haven't gone there already. DMs, pay attention. Have a solid argument planned out beforehand or suffer the consequences. The thirsty, withered consequences.
Personally, I argue that Create/Destroy Water can't target a creature therefore get fucked, cast it somewhere else or pick a different spell. Why that is, scientifically? No idea. Same reason you can't Revivify a kitchen table. Logic dictates that you could turn it back into a tree, in practice nothing happens. It's A Secret To Everyone™
Not deadly, just displacement-y. It dumps you into the Astral Plane in your physical form but deals no damage.
Now the effects of the Astral Plane on an unprepared non-spellcaster can be pretty deadly. But that isn't the boom's fault.
The Ricky Bobby school of RPGs. If you ain't first, you're last.
Naturally. Using Arcane Mark, so it doesn't wash off.