I think it’s basically a trope that lawyers have some of their own language. ┬áThere’s a tendency toward double negatives- “I don’t disagree with you” and the like- but there are some ways in which the general language would benefit from upgrades.

Vernacular Lawyer
My bad. Mea Culpa.
You’re a pain. You’re quarrelsome.
This sucks. This is not conducive to good trade.
dumb ill-advised
This paperwork looks awful. It’s inexpertly drawn.
bad idea (coming from a judge) not favored