Something you never knew about me

When I do dishes (or basically any other time I'm by myself) I make up songs and sing to my Cat, Sweater. For some reason his name is easiest to fit into the music. Normally they are to the tune of something well known, such as:

Somewhere over the rainbow
Something by Bobby Darin (ex. Mack the Knife)
The Doors (because Cameron plays it all the time so now I know every song)
Anything by Disney



This is probably one of those things that everyone does, but no one else knows.

It makes me think, if everyone does it, yet no one else knows that everyone else does it, does that mean its human nature? Weird.