What Are Very Specific Tropes You Hate?

What kinda specific tropes do you hate? My top 3 most hated are:

1: ML is an insomniac and MC is his lavender essential oil (a patented formula of which only one exists in the world).

2: Halfway through the story ML/MC gets into an accident and loses their memory (and even more specifically when they lose their memory of ONLY the MC/ML).

  1. Body swap.

Honorable Mention: The plot can't possibly change even though it's changed over 5 times already.

I won't even touch #1 or #3 and I give #2 five chapters to fix itself or else it goes into the drop pile.