You think Trump is known for self control?

He avoids depositions like the plague, and last year when he couldn’t he pleaded the 5th 440 times.

Yes, I agree that one of his tactics is to avoid consequences. While I can see how that is a form of self control he also tweets outrageous things.

Maybe he's more careful when cornered, like if he's on the stand he'll change to a much safer personality.