Dang! What an asshole. That’s how dirty cops torture and mess with people during interrogations — have them drink a lot (which Barr does), then refuse bathroom breaks.
Barr could have walked out. Who would stop him?
He should have done that, the first time they didn’t allow him to answer. As you say, who would stop him? As much a bunch of scum bags the rats 🐀 are, I don’t think even they would like the public spectacle of trying to stop him physically. 🤗