I recently opted out at ORD T2 and had an interesting experience. Guy manning the WTMD called for male assist. Nobody came. After a minute or so, called for another male assist, nobody came. Asked a lady moving a bin back through the x-ray to come relieve him when she's done with that so he could pat me down. She said ok, then proceeded to just go about her business and completely ignore the guy. After a couple more minutes, he called a THIRD time for male assist. After a couple more minutes, someone finally showed up. The entire time, this guy was looking around for someone to come over and help him out. All told, I stood there for about 7 minutes before someone came to pat me down. The patdown was cursory, at best. The guy went through the initial script because he said he'd get in trouble if he didn't, then quickly patted me down, checked his gloves, and sent me on my way.

Felt kinda bad for the TSA guy who was being totally ignored by his peers. I counted 10 - not including him - at the checkpoint at that time working the 2 conveyor belts and the BKSX and doing whatever else. There's a lightbulb joke in here somewhere.