Estranged father dilemma! Long story short, my dad has never been a key part in my life and moved 300 miles away when I was 16, went missing for a year and has just generally been a let down throughout my life. We have an ok relationship now but I'm not really bothered about him being in my life to be honest, sometimes it just brings more hassle.
My stepdad is a wonderful man and does anything for me and my little family. Wedding is 10 weeks away and I have told my dad that my stepdad and mom will be sat on the top table and my dad and his wife will be sat with my brother at a guest table. I also told him my mom was walking with me down the aisle. He wasn't impressed but I was shocked that he was so surprised by these arrangements. He really hasn't been a model father and has only met my daughter twice. He can be a violent, hot headed man when he wants to be, especially after a drink, so I asked him if he could behave himself and he has decided that he is only going to attend the ceremony, have a photograph and then leave.
My problem is that he hates my stepdad (my mom and my stepdad were childhood sweethearts reunited a few years ago), and I'm afraid that he will kick off when it's time to leave the ceremony, especially if me and hubby are away having photos. My only wedding stress has been this and I honestly don't know what to do. Should I ask him not to come altogether or should I just trust that he will leave in a dignified manner? I'm afraid he'll turn up anyway if I tell him he's not invited 
Thanks for reading my rambling! 