Absolutely! That sweet older landlady living right below you can probably hear every single thing that is going on and she won't be willing to tolerate it. Don't give him another chance or you really will get evicted from your home. Set a definite time for the roommate to find another place to live and make sure you let your landlady know this person won't be staying much longer.I agree. He needs to move, otherwise you will find yourself evicted and on the street.