How can a phone ringing not ruin your focus? Maybe you never actually focus on anything, and so do not understand the phenomenon?

Some of us have a different problem, which is that our focus can endanger us or ruin our marriages. For us, it is easy to tune out things going on around us like phone calls, houses burning down, or our spouse repeating the same question with escalating irritation...

this is not ruined focus:

> Recently, when I was at mum’s alone, the house phone rang. I didn’t answer it. It rang again immediately. I didn’t answer it. It rang again immediately. I stood over it, willing it to stop, palms sweating.

I guess managers are a disorder then.