Forget ManSpreading.  HamTrapping is a much bigger problem. We've all seen it, some poor fool, usually a skinny guy, is stuck in a corner talking to a ham.  They've been raised to think that you should be nice to everyone no matter how fat they are, so the guy is stuck.  His body language is completely closed but the ham won't have any of it.  It just keeps talking, getting closer.  His polite smile and nod has changed into looking around for any escape route.  The fear in his eyes grows as he's not sure if it's going to try to mate with him or eat him.   Stop HamTrapping.  Let your friends and family know it's ok to ignore a hambeast and just walk away.  It is a blight upon society.