Insults, what is your conviction?

Avoid the profane and the obviously vulgar. The best insults take time to lodge in a person's mind and then fester there.

"I can understand why your mother hated you."

"I do pity any children that you may have. Hopefully they will be taken into care."

"Are you like this because your father failed to abuse you?"

Why have you followed up your advice with three random examples of your inner dialogue?