Laundry etiquette

When using community/coin-operated laundry machines, leave your laundry basket nearby so, if you're late to return to your completed load, an impatient patron will be more likely to place your wet/dry clothes into your basket and not onto the floor.

Spectacle damage

Using one hand to remove your glasses damages them.

Developmental Sarcasm

Sarcasm is lost on children still learning language and will come off as confusing and possibly mean-spirited instead.