Is it normal to be turned on by bad grammar?

I find it intensely erotic when someone speaks improperly, especially in a country dialect. When I'm pleasuring myself and I'm almost there, I imagine a man with poor hygiene and bad clothes is saying "ain't" a lot or misunderstanding the subjunctive mood. It massively intensifies the orgasm. If I'm having sex with a man, I try to get him to do this for me, even though it freaks me out when a girl does it.

How normal is this?