Take them out and leave them in the same place.
If someone is lurking in your garden and they see something they want in your house and they have a key to easily get in, 90% ain't fussed about smashing the window to unlock the door before they have what they want and are gone. You might come into the room a minute later and see whats happened. By that point your burglar has most likely changed his top, stashed what he's nicked and even if stopped won't have anything on him/her to point to an offence.