A paintbrush toothpick situation

Many years ago in 2019 GREG went gorilla freak out mode on his amazing, fantastical daughter because she stirred paint with a paintbrush instead of a toothpick while painting mini D&D figurines. A paintbrush toothpick situation is when someone does something small and seemingly unimportant and they get too angry.

Dollar Tree Employee- I saw you dropped that licorice on the ground YOU NEED TO RESPECT MY STORE.
Karen- (walking out the door silently whispers to herself) you should respect me
Dollar Tree Employee- You better not bring your smart-alec a** back to this store again
Molly- Bruh that was such a paintbrush toothpick situation