-I think the two boundaries you mentioned are good but you must be willing to follow through on the consequences otherwise setting boundaries is pointless and may exasperate your problems. These were examples of my boundaries:
1. I will not allow someone to use drugs or be under the influence of drugs in my home. I will call the police.
2. I will not allow myself to be verbally or physically abused. I will ask that person to leave and if he/she doesn't I will call the police.
3. My home is not a flop house for burned out addicts or their friends. Refer to number 1.
4. If you disappear and do not call to let me know where you are, I will change the locks and you will not be allowed to come back.
I wrote my boundaries down and gave them to my ex so he knew exactly where I stood and he stood. It also gave me something to refer to when he stepped on my boundaries. The consequences were written down as well. It forced me to follow through.