How my mom "hacked" my phone. (stacksmashing.net)

This is a stab in the dark, but I’m wondering if you picked ‘off the top of your head’? If so, the odds go way up as subconsciously reading the number may have put it in mind. (If that is the case, the phone hacked you!)

Fun story. I'm old enough that this situation wouldn't happen with me and my mother (and, she's passed), but I found it a little creepy/weird that anyone would pick up "my stuff" and just start playing with it as if it were community property. Even my 11 year old knows to leave other people's stuff alone.

Am I alone here?