I am wondering this as well. I think I might have the answer though. I had a procedure done recently 6 months ago that they wanted to have me put under for and I put all of my items like cell phone, keys, wallet and jacket together and I 'think' they were going to put them under the gurney but offered to let me ex hold them instead. I am pretty sure it was going to go under the gurney since I was not in a proper room but just behind a curtain with the gurney to get prepped. So maybe they do put that under the gurney and he started the recording when he put on his gown.