I'd enjoy traveling a lot more if I could sit near this comedy act:
During the conference, the Rev. Cesar Truqui, an exorcist based in Switzerland, recounted one experience he had aboard a Swissair flight. "Two lesbians," he said, had sat behind him on the plane. Soon afterward, he said, he felt Satan's presence. As he silently sought to repel the evil spirit through prayer, one of the women, he said, began growling demonically and threw chocolates at his head.
Asked how he knew the woman was possessed, he said that "once you hear a Satanic growl, you never forget it. It's like smelling Margherita pizza for the first time. It's something you never forget."
Obviously, if you're "silently" praying to repel demons, then that prayer should be loud enough to be understood by the people sitting behind you, even over the noise of jet engines. Anything less and the demons might not settle for EasyJet next time.