If the police found a Browning Model 1922 that was rusted so badly that the slide wouldn't move stuffed in the bottom of an old chest marked "Sgt. Bill Smith, 1944", then you probably would be ok. If the police found a Glock 22 on the top shelf of the towel closet with not even a light coating of dust, then you're probably not going to be ok. Either way, the police could "take you in" for it.