It happens every day. I saw a TV program, from CCTV, of a white van driving boldly into a builders yard, reverse unto a small road roller, out climb 2 suitable dressed navies who positioned a ramp at the back of there van and proceed to drive the roller up and inside and equally boldly drive out of there builders yard. Broad daylight, sheer cheek & bravado.
I would not be surprised how many 'white coats and neck stethoscopes' remove stuff from hospitals everyday. The list off bare-faced don't blink thieves must be huge.