The fact it's nearly impossible to not build from others' work is one reason I don't want to call it something sinister. There are enough differences, and when it comes down to it, it might just be the number of sylables in the title and the way they sound when spoken/sung or something else that just happened accidentally.

PF, what's funny is when a song nags at me for a long time, and when I figure out what it reminds me of, I wonder how the heck I managed to think the two were similar. Sometimes, I think it may just come down to the fact that you were eating carrots when you heard both songs.