I usually call my mum most days but the only time she calls me is if she didn't get to the phone quick enough to answer before it rings out.
If I miss a day or 2 the first thing she says when she picks up is "you've not rang". It's almost as if the phone doesn't work in reverse.
WIBU to just not call and see how much time passes? I'm currently on day 3 of not calling her. 🤷♀️