That's not what sinister means (the root is from the latin word for unlucky or ominous, and has nothing to do with "the devil").
Actually, there are a number of meanings and your post can be taken a number of ways. Looking at what sinister and evil mean to others shows how that word may not have been what you meant. Then again, my complaining about your ability to communicate opens the door to your complaints about my attempts at humor.
I take it all back.