Oh my

I wonder what she really thinks capital letters are used for then... You know, other than caps locking people to death on the Internet.

Bit of history here ... Carolingian minuscule evolved about 1,300 years ago in part to help fix a problem with uncial script (used by the Latin and Greek scribes from the 4th to 8th century AD). Uncial is all capital letters and there were issues with where the start of sentences began. So Carolingian minuscule introduced clear capital letters at the start of sentences and spaces between words and formed the basis for all Western fonts that followed including the one you're reading this in (you might even have Carolingian minuscule as a font option on your word processing software even now). So this was introduced during the so called "Dark Ages". Medieval "dark age" people in a period when literacy rates were near rock bottom, when folks went back to living in mud huts and at a time when lots of people were running around being a bit rapey and killy, these people stopped for a bit and recognized the need to for upper and lower case letters. Someone should tell her this.

you should turn that gun on her and pull the trigger :)

I thought she was going to say word and I was like ummmm okay I agree, but then

Sorry, but even joking about guns like this isn't cool. It is never the answer for anything

My ELA teacher made us make a brochure and she said this was the biggest problem she had.