Colleague of mine, nice as she is, has a habit of shoving her phone right in my face when I'm mid-sentence if she's not interested in what I'm saying. It'll be yet another picture of her daughter/text about someone I don't know and I'm supposed to completely change tack and start talking about that instead....would IBU to tell her that next time she interrupts me with phone in face thing I will shove it up her arse?