Just had to add the drama, eh?
Fun to imagine but wrong location (would have been in an office or conference room, perhaps a secured location protected from eavesdropping), and wrong ending. Rosenstein would not act like a rebellious child, he’d sit there quietly and try to figure out if silence was enough protection or whether he’d need to take the fifth. Barr would not be wiggling fingers at RR. This would be completely professional.
Mueller and RR are now dealing with an experienced AG who is not going to take crap from anybody. Mueller threw the people who affirmed the FISA warrant under the bus to protect himself. RR has no such protection. He’s one of the idiots who signed a renewal.