I assume you meant "second" person. Surely everyone does this. "You don't really want X." "Dammit, Randall, that was a stupid idea."

You don't do this?

I think to myself in the first person sometimes, in the second person at others, and even as a group occasionally.

For example my thoughts look like, "I should work from home today", or "Bill, you're a genius", or sometimes like "Why don't we just go see if there's any ice cream left..."

I have thoughts like that all the time. My usual first one of the day is :- " You know Maggie, we really should get up now " :) xx

Yes, this is my mode as well.

I don't.

Sure. Who doesn't?

Isaac is always saying to himself, "You should really use the first person singular," but he knows how much we hate that.

No, we don't.