Self-Inflicted Torture
One of the systems that I access electronically requires that I change my password periodically. During the last password change, I based the new password on a particular song. Obviously I can't tell you the song or else you may be able to access the system. However, suffice it to say that the song is not a new song, and in fact sounds older than it actually is, with a music hall feel.

Problem: every time I access this system, I think of the song.

Problem: I access this system a lot.

Problem: that song is therefore going through my head for many of my waking hours.

Of course, I could change the password again, but it's troublesome to change passwords for this system. So I'll live with it until I'm forced to change...several months from now.

Argh.