That plus those seats designed to put strain on your legs would be a 0/10 pooping experience. The only way I could think to make it worse is if you could find a way to send an all-hands message in Slack: "567primemover has been on the toilet for more than 7 minutes. Send him a word of encouragement!"
A jammer would be the stupidest thing a place could do. Is is illegal and enforced, plus cell companies help investigate it. And Faraday cage is not necessarily illegal.