I'm not talking about someone on maternity leave popping in with the baby for ten minutes so everyone can coo then sodding off again. A head honcho here has brought their four-year-old (or thereabouts) in with them, they've been sat in a chair next to their desk all day. Mostly kept quiet, using an iPad with headphones, occasionally talking quite loudly to himself or at his dad (who's quite busy), which is winding up other people.

Not very professional, no?