[Bob Loblaw]

"I already insist that only people weighing less than 110 pounds can be truly comfortable in coach class as it is."

Not only less than 110 pounds -- but also less than 5'10" in stature.

[RockinRight]

Well, less than 5’10 I am, but I’m well over 110 pounds! I find that if someone is next to me, that my entire lower region is sore, cramped, and uncomfortable for hours after flying.