A couple of years ago I had to deal with this person who had created a hell for me. I was a total beginner in magick, I had never evoked or done any proper sigil work and I didn’t have access to many books (I think that if I was aware of E.A.'s books back then everything would be easier but anyway). I didn’t have any tools (and space) for a proper evocation so my only option was to try to summon Flauros just with his sigil.
I was focused on my intention to make him come and listen to me so after an hour or so I started crying for no reason and if I remember well, first I said what this person had done to me and then what I wanted to happen.
I was very clear with what I said, I wanted this person out of my life as soon as possible and to stop dealing with me. I was too scared to inform the police then but I had informed someone else that I trusted, just in case something went totally wrong.
After a week this person’s life started falling apart so I was like invisible somehow.
I don’t know if I was successful at evoking Flauros or if what happened was a result of the focus of my intention but at least I got what I wanted.
In my opinion, if you don’t act when you’re given the chance then it’s going to be worse everyday. You say that you’ll have to live with knowing that you’ve summoned a demon to destroy him. I think that you wouldn’t like to live with knowing that you did nothing at all and you just stood there watching him fuck up your life, right?
For me there are no second chances and I can’t forgive anyone who messes with my life and my personal well-being in any way.
You don’t always have to kill your enemies… Make sure that you know what you want to happen to them, chose your weapon and fight.