catch
Explanation
In this comic, an alien is performing the classic "abduction spotlight" routine on a human, but the human keeps catching the alien in social faux pas. The human points out that shining a light in someone's eyes is rude, that the alien is essentially kidnapping him, and that the alien's behavior would constitute a "major social faux pas" -- detecting deception, ignoring consent, and violating bodily autonomy. The alien grows increasingly flustered as the human applies ordinary human social norms to the extraordinary situation of alien abduction.
The joke escalates when the human says the encounter "doesn't need to be reciprocal or even really wanted" -- flipping the script so that the human is now critiquing the alien the way one might critique an awkward social interaction. The alien, defeated, decides to just keep doing what it's doing while the human "brings friends along." The final panel reveals this was all an "evolutionary plan" -- the aliens have been using small social blunders to ensure humans maintain social awareness and vigilance, essentially training humanity through awkward alien encounters.
The humor lies in the absurd deflation of the alien abduction trope. Instead of being terrifying, the abduction is reframed as an uncomfortable social interaction where the human has the upper hand by applying etiquette rules. It also satirizes how humans can find social awkwardness more distressing than genuinely dangerous situations.