I had an experience like that once at a friend's poker table, but basically because of superstition, as it was not allowed either that ladies put their purses on the floor not having any other place to do that.

I haven't played with 11 players at the table before, but I can understanf your complaint of it being too crowded. I would try and find somewhere else to play poker if you can. That is just too many people for my liking, never mind not having room for your chips.