The people who'll go "ugh that's not what ketamine does, you people have clearly never done drugs" obviously were not there when "cast ketamine ape" was added to the list of banned spells. Because clearly you've got the wrong idea of what "cast ketamine ape" actually does.
First of all, did you know that as far as magic is concerned, it can't tell the difference between being poisoned unintentionally, being poisoned intentionally, and being intoxicated recreationally. You can straight-up fucking narcan someone with any healing spell that includes removing poison from the body. And the fun part is, they come out in full fight-or-flight. Yeah they come up swinging. Also even if your healing spells are specifically tailored to be used on humans, and are unreliable even on most other mammals, primates are so close to humans in structure that specifically human-intended spells work on them just fine.
Now picture the following: You've got a full-grown adult male cape babboon, already deep in a k-hole, somewhat conscious but with no inkling of where, how, what, or why it is, lightly concealed within some sort of material that it could easily rip through if it was in its full strength. Let's say, gently wrapped in newspaper.
Now let's say you stealthily leave a mysteriously wrapped bundle - almost the right size to contain a human child but certainly the wrong shape for that - in an inconspicuous place. Like under one of the tables at a wizard conference. Maybe under the table of someone important that you don't like. Then, at a safe distance but within reach of the magic, you cast "poison heal".
And obviously, they couldn't just ban "poison heal".
