Yes.

"Grow some balls."

"I had ******* pneumonia, it was nothing to do with you."

Probably a few more gems in the archives of my mind too.

In an email I sent once I said she was talking *******, for ignoring the fact I had no money to pay for sessions and insisting I could still come without saying it was pro bono. She was not one bit pleased at what I said, and called me abusive.

To me, there is a difference is saying **** or whatever when speaking (we both did this) and directing the profanities at somebody aggressively.