Not exactly what they meant by burning your boat!
Stan: So you just built your store on an Indian burial ground?
Store owner: Oh, hell, no. First I dug up all the bodies, pissed on them, and then buried them again upside-down.
Kyle: Why?
Store owner:Why? I don't know. I was drunk.
— South Park
Incidents of jaw-dropping stupidity brought about by a character's excessive consumption/usage of mind-altering substances.
These substances are usually alcoholic beverages (as alcohol can be legally acquired in sufficient quantities to effect one's judgement in most places), but other mind-altering drugs sometimes get used instead (if the drug in question is illegal in the place where the story was made, it's often also part of a Drugs Are Bad message).
This tends to overlap with In Vino Veritas: Often, the character committing the act of alcohol-induced idiocy will be an otherwise sensible and reasonably intelligent person when sober. If the character is normally dimwitted, getting drunk will make him even dumber. In both cases, the character's inebriation usually results in him being a danger to himself and others.
Someone who becomes a Drunken Master when intoxicated is the direct opposite, though sometimes these tropes can alternate (e.g. a rock musician who is more capable drunk onstage than sober, but then gets beaten up after picking a pointless fight he has no chance of winning the moment he gets offstage) or can even co-exist (the thing the drunken mastery is of something that someone in any kind of rational mental space would not do, e.g. walking a tightrope above a guaranteed fatal drop without safety gear, wrestling an actual bear). Liquid Courage tends to be a more positive occurrence.
Alcohol-Induced Idiocy can be similar to the Idiot Ball or any other plot device that depends on Contrived Stupidity.
In comedy works, we (the audience) might not hear all the details of what happened while a character was under the influence, just humorous and tantalizing hints to feed our imaginations.
Incidents of jaw-dropping stupidity brought about by a character's excessive consumption/usage of mind-altering substances. These substances are usually alcoholic beverages (as alcohol can be legally acquired in sufficient quantities to effect …