Well, are you doing anything naughty? I also think that just thinking naughty, and having a dirty mind could have something to do with it.
You do what you don't do in public, you feel naughty when your alone because you do naughty things. ;)
We always want what we cant/dont have. Your not getting any....you want some. It makes sense.
Are you doing naughty things?
well I used to do sumtyms