Hi my ex partner and I split last month due to months of arguments over his drinking he was spending more time and money at the pub than with me and his son on many occasions I asked him to change his habits but didn't I left one Saturday when I picked him up the afternoon the next day from him drinking and we had a petty argument from which he though food all over me and slapped my glasses off my face and called me horrible and hurtful names. He lives in Cheshire and I have now moved back to London with my family. He has asked me to have our son next weekend up there at this woman's house who has 2 dogs one which I know is nasty towards children and the woman also smokes I don't like the idea of me sending my son to a woman's house he doesn't know and I also don't know what the house is like and the fact she has a a aggressive dog really worries me. I have no trust in my ex partner to not be drinking when my son goes to him and as I said previously he use to smoke canabis even though he has told me he has been clean for 4 weeks now. I just feel I'm at a lost end I don't want to stop my ex from seeing my son I just find it hard to trust he will be in safe hands with him.