How often do y'all get glass bottle + boil over?

Been playing since November and recently got into either some weird MMR, or something's in the water, because for the past couple days I keep getting SWFs that play glass bottle offering + all run boil over, and then troll in the second story of the saloon.

I'm assuming this isn't anything new in the game in general but it's new to me. How common is this, really? Because for some reason it happens to me at least once a day now. I end up just slugging everyone for the win, and that works out alright, but it's annoying AF.

Just for fun, tell me the other troll SWF tactics I may see soon!