Alright, this is a little weird. I think it belongs in this forum, but maybe with a touch of parapsychology.... I'm sure some of you have noticed how catchy yawns are, maybe even looking at the title to the thread even made you yawn. I've noticed a few weird yawning situations. I'll start with the least weird first and then post more later. #1 I remember often sitting in class and I'd see someone near the back of the room yawn. Then almost immediately a person in the front of the room, who would have their back turned to the first yawner, would start yawning too. What's going on? First off, why is yawning so catchy? Secondly, how could this person even know that the person in the back of the room yawned?