Well maybe not shadiest but funniest: I was flying on a red eye flight between Seattle and Houston. At about 4am, about half way into the flight, the passenger (guy 1) seated in two stood up. Guy 1 was stressed because he needed to use the toilet, yet couldn’t get to the lavatory without waking the passenger (guy 2) seated next to him in the aisle seat. Guy 1 came up with a grand plan: first, he turned around and faced the rear of the plane. Next he put his hands on the back of the his seat, and stood up on the armrests. Steadying himself, guy 1 stepped from his armrests to guy 2’s armrests. Guy 1 was now hunched over facing toward the rear of the aircraft, with his crotch area right in front of guy 2’s face! At this point guy 1 awakens! Startled, guy 2 bolts up, striking his head into guy 1’s groin area! Guy 1 crumpled onto guy 2 who shouts, “get the f**k off me!”, and then pushes guy 1 into the aisle! Guy 1 staggers up and into the lavatory! All of the first class passengers were now awake and laughing. Guy 2 started laughing too. When guy 1 emerged from the lavatory, he had a sheepish smile and offered his hand to guy 2, who shook it as he got up to let guy 1 back into his seat!