Hmmmmmmmmmmmmmm
You are correct
The Nana was grammatically in error
Oh noez
The sun wont rise today...
Anyhoo Mohammad is too busy screaming in Hell to be concerned about any feelings he might have about his victims receiving sainthood from the new and wonderfully courageous Pope..
Maybe not, Nana.
If "I could care less" is said sarcastically, it could mean the same thing as "I couldn't care less". Your lips might be saying "I could care less" but your tone is saying the opposite.