BiL - you are bleeding your mum and dad dry with your pathetic, childish, selfish refusal to partake in anything resembling a normal life. You're 26 ffs. Stop fucking taking heroin and crack, sponging money from your mum and dad to pay for so-called film courses which promise to proffer a job "with Film 4" at the end of them, and go and earn some honest money. Take your methadone, get yourself on anti-depressants, make a fucking effort to attend Christmas Day dinner with your family when we are all having a lovely day upstairs. Adult life is about taking responsiblity for yourself and not lying in bed in your own wing of your parents' house, smoking weed and heroin, and only coming upstairs occasionally to scrounge the fridge full of Waitrose food they have bought in an attempt to make you feel happy.
MiL - kick ... him .... out. You're selling your gorgeous home in the country that you bought for your retirement because he is costing you thousands a month. His dad MIGHT leave you if you kick BiL out, but surely your primary responsibility is to your son??? Grow a backbone.
FiL - wake up and smell the fucking coffee. BiL is LYING to you every day and you make yourself believe his lame reasons for needing money because you feel so bad about the crippling depression you suffered in your 20s and think you are empathising ... you're NOT.
Oh, and, MiL, BiL has "borrowed" hundreds of pounds from DH that FiL knows about, but hasn't told you about ....
And finally, just because I am a drugs counsellor does NOT mean that i can cure BiL, so being angry with me is totally pointless.
Phew ......