The Smiley Face
“She and I did that thing where if we texted each other and used a smiley face or put a period, we immediately assumed the other person was in a crappy mood. A fight would quickly ensue. Because of emojis and punctuation. I wish I could slap myself in the past.” – Reddit user rasouddress
Using texts leaves too much for interpretation and you end up fighting out of the blue because the sentence didn’t contain a smiley face! The horror!