I have OCD.
I count everything, all the time.
I remember how many beeps signify that the microwave is done...and the tone of the beeps... for every microwave I have ever had. And I remember lots of other useless crap.
I remember telephone numbers by the tone of each numeral and can “replay” every telephone number I’ve personnally ever had by sounding them out. How’s that for useless, lol?