When I lived in Oxford, and got real milk delivered by a real milkman, it was inevitable that I sometimes had to leave notes saying "no milk today". At which point I was left singing
No Milk Today for the forseeable.
When I used to help out at the beer festival in Darlington, one of the staple ales severed was the (now, I think sadly defunct) Butterknowle Brewery's Old Ebeneezer. In between pulling pints, I invariably sang bits of the sea shanty about "the good ship, Ebeneezer". This was particularly annoying, because I only know about a line and a half of it. Why a shanty I barely know instead of the perfectly excellent Ebeneezer Goode? I don't know. I don't do it on purpose.
Sometimes, I don't even need a phrase to be actually mentioned in a song. On the mercifully rare occasions I have to mess with my Windows desktop settings, I invariably end up warbling faintly to myself The shareef don't liiiike it... lock the taskbar, lock the taskbar! Once heard, it cannot be unheard.
Today, I walked through Reading's centre and observed that the Early Learning Centre had shut. Which means as soon as I've managed to forget it was there, I won't start nearly so many of my working days singing
Magic Streets - We went to the Early Learning Centre, with the money that I'd lent yer....
There seems to be an inexhaustible supply of things which make me burst into song (usually, for the sake of everyone around, quietly). Does anyone else have similar problems? What sends you off into a song?