its the same thing as putting in a crew member on your grow, you never know if their going to let it slip that he/you grows. its a huge risk that isnt worth some arrogant ass who doesnt care if you wined up in jail and your life is ruined. you cant trust anyone when it comes to growing pot. not to mention everytime you leave the grow you run the risk of you crew member/ g/f backing a truck up to the door and hauling away all the equiment and harvest before you get back.