thats not a stupid habit. sheesh.. who doesn't sing loudly when just walking around. people do it all the time. funny you mention it though.. the other day i was in an italian pizzeria odering 48 delicious cluck-u chicken wings.. and i need a girl part 2 came on so i started singing kinda loud i guess and danced a bit. the other customers looked at me... with ENVY. they so wanted to be me