The prolific, ongoing, and ubiquitous subjugation of left-handed people throughout the ages.
Scissors are almost exclusively made in support of the right-supremacy. Since school we lefties have had to fight for the 1 or 2 left-handed pairs in the batch.
I'm so sick of my tennis lessons mentioning LEFTIES like we're some kinds of freaks! This RIGHT-SUPREMACY needs to be checked!