most of the case law brought before the appellate courts that I have read (read tons!!) that involved controlled delivery usually also contained the element of possession. Simply signing is usually not enough to prove possession since a family member or pretty much anyone can sign who answers the door. Every case I read the investigating agency had placed a tracker in the shipment that would emit a short range wireless signal to let the guys in the black vans know to bumrush your house. Signing 'may' not be enough for possession but opening it is pretty much an open and shut case in the eyes of the law. If you open it... it is yours!Never sign, but if someone does, write 'return to sender' on the package and go for a ride. Look for any cars or vans you don't recognize. Drive for about a mile and find a garbage receptacle and get rid of the packaging... you should be safe.Good luck!!TJ