1114
Scary
(files.mastodon.social)
alt text
Comic strip of a ghost and a person with the American flag pasted on the head. The ghost repeats "Boo!" in the first three panels without getting any reaction, but when it in the fourth panel says "kg, cm, km, °C" the American gets scared and screams "AHHHH!!!".
Edit: fixed alt text
As much as I vehemently dislike US customary units, MM/DD/YYYY is the USA's greatest notation crime.