Yup I know that routine, looking in all crates for stuff that has gone missing. Destiny has a thing for bluetooth headsets for phones. She even stole one from my dad´s ear and chewed it all up. She got mine from my jacket pocket, from a table top and somehow from a nightstand drawer.
When Chip gets something he knows he's not supposed to have he uses it as a taunt for me to get it from him. Mostly socks. What is it about socks? Sometimes an important piece of mail, but if I tell him to "LEAVE IT", he will drop it immediately. He will not even get into the trash but if I drop a piece of food that is alright for him to eat he can have it.