Bit of background story: My dad walked out on my mum back when I was a baby and rarely bothered to contact my mum or grandparents about my or my older brother's welfare and the only times I remember he did bother to appear he expected us to be there without even telling us when he was going to bother to show up, he rarely did anything for us because he didn't give a flying fart. Suddenly he decides he wants to get in touch even though I don't give a flying fart about him and personally I don't love him or even like him (he's remarried and the only reason why me and my brother agreed to see him occasionally was because we both like his new wife - she's an absolute angel). He decides we've got to go over to his place (which we do) rather than him making the effort to come and see us at where we lived at the time. Then he decides to lose interest for another few years then the moment he finds out that I went to college he suddenly blows up at me on facebook saying "why do you want to do that course it won't lead anywhere blah blah blah" so I delete facebook for a while so as not to make the situation worse. Fast forward again, I reopen my facebook and my dad finds me again then asks for my address, I make a few non committal noises because I don't really want to give that abusive bastard (excuse the language) my address, the following day I log in to facebook just to quickly check something, he somehow finds out I've been online and then blows up at me again in facebook message literally demanding to know why I haven't given him my address when I was online for 2 minutes maximum. Now telling him exactly where to go isn't an option because he'll just have a go at me and then drag my brother and other family members through the dirt (ie say horrible stuff to them and make them feel extremely crappy) and ignoring him isn't an option because there's a very good chance that he'll literally harass other family members just to get a reaction. Advice on what to do please? I currently live with my mum and Mum doesn't want him knowing the address because she hates him and I don't want to give out the address either because he can piss off out of my life and leave me alone.