How do you feel about the use of 'on accident' grammatically speaking? (poll 5526834)

How do you feel about the use of 'on accident' grammatically speaking?

I couldn't care less.

It's incorrect, and 'by accident' is better

I prefer to use accidentally or choose to pair accident with another preposition.

It's correct.

I could care less.

Other:

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See this poll on: https://poll.fm/5526834/embed