Now that I know it is her birthday I am thinking of leaving a bomb outside of her door.
This is just awful! What crime would you risk to do something like that?
Nothing, if I'm caught I'll just deny it and say it was a random nutcase.
That's very unlikely to work, most attacks are done by people the victim knows, not random nutcases. And seriously, do you need to be told not to try to blow up your friend? Someone's calling the bomb squad on you.
I don't care whether you like it or not.
You should not do it because it is attempted murder and not because I dislike it. I'm just telling you that most people will believe you're psychotic if you plant a bomb outside of someone's house, regardless of if it is their birthday or not.