TIL that the incorrect usage of an apostrophe in english for a plural noun (e.g. "burger's") is called a greengrocer's apostrophe.

https://en.wikipedia.org/wiki/Apostrophe#Superfluous_apostrophes_(%22greengrocers'_apostrophes%22)
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1fyk5zw/til_that_the_incorrect_usage_of_an_apostrophe_in/