Back when learning Perl, I was hacking away at a parser for some data generated by someone elses CGI program. I was doing it in my sleep. As the regexes got harrier and harrier I tried harder to beat them down. I found it hard to apply a regex to this one string of data, which was in fact aural, not textual . . .I figured if I could s/\Abeep\E// then the alarm would shut off. It made some much sense, that I continues to deal with the alarm clock as a pattern to match against as I dressed. It wasn't for an hour till I realized I needed to turn it off.