2/ None of my go-tos are great. Interjecting, “can I please finish,” is the best I have. Raising your voice and repeating until they stop is aggressive and bitchy.
Letting them say whatever, totally ignoring, and starting over from the beginning also works but is super bitchy.
@mattwilcox @briannawu FWIW, as a fellow bloke, here's a bit of 'allyship' that I practice that many seem to find helpful:
When I'm in the room for a man pulling that BS (especially if it's "my" meeting), after 15-20 seconds, I'll cut the dude off w/ an explanation that they're off-topic, the ideas that they're proposing aren't feasible or change the scope of work (or all 3); then, I stop myself short, w/ a big "Oh, terribly sorry, Brianna, we interrupted you! You were saying?"
@briannawu @mattwilcox (I've been thanked more than once, so I have some inkling, but honestly, if it's just you, me, and the rest of the Fediverse, this seems like the bare minimum?)
(Side benefit: it seems like I'm the only one in my peer cohort of middle managers who can wrap up a 1-hour meeting, in, y'know, 1-hour. Probably just a coincidence...)