Although you can forget old code, it never forgets you.
Kode Vicious (George V. Neville-Neil)
http://doi.acm.org/10.1145/1409360.1409372
Oh, look. I appear to be lying at the bottom of a very deep, dark hole. That seems a familiar concept. What does it remind me of? Ah, I remember. Life.
Marvin the Paranoid Android