My brother and his wife split up back in the spring, so he asked me if he could stay with me for a few weeks. I let him, on the understanding that any trouble with the law (his brains not what it could be) meant he was out. Within 2 weeks a local officer that I know fairly well let me know that he was not only known to them, but that they had been to my house twice in the past week as his estranged wife was worried about his behaviour and he had been smashing doors to get into the FMH. He was given a warning by me, but I had to kick him out (he wasn't paying anything towards bills either ... another issue though) when another bobbie turned up looking for him as he'd threatened a girl he had been seeing.
My tickets shouldn't have been a risk, he had no idea where the keys were etc, but given the police activity at my house, and the domestic violence possibility, did I do the right thing ? I think so.