Just had it up in the kitchen at work again. One particular woman who always tries to cut across the general conversation and change the subject to something she's interested in (usually her kids or relatives). Today it didn't work, people just continued talking over her and she turned to me, who was sitting beside her, and just started talking about her niece's new baby while I was listening to and enjoying the existing conversation we were all having (about 8 of us).
She's always doing this. AIBU to find it annoying and to want to pour my coffee over her everytime she does this.