At 13 in Grammar school I was accepted in to a gang of lads, but there was a problem with my first name ("Brian") since there was already a 'Brian' (hello, Brian Rolfe), so I was called "Alex" (my second name, after my mum's father) and I adopted it ever since. That pleased my mum, but my father never ever called me 'Alex'; he always called me 'Brian'. He still calls me 'Brian', after 43 years! I thought at first that it was stubborness (he is very stubborn) but it is not - he just cannot remember. Worse, I am exactly the same!
On the upside, I am a maniac for very well ordered programming, Classes and extensive comments - how else am I (or anyone else) supposed to remember 6 months later why I did what I did?