At some of my house parties I require guests to check their phone at the door. Price of admission. (I keep a landline and am ok with giving that number out as a

At some of my house parties I require guests to check their phone at the door. Price of admission. (I keep a landline and am ok with giving that number out as an emergency contact number). Boy does this get the conversation started. I can tape my phn camera, but what about the other 20 phns in the room? I have no control over them to keep them from posting photos of me drinking or whatnot during a party, photos I do not want online. From the tin-hat perspective one must do (much) better than consider their personal devices. One must consider all devices in their personal proximity .