Interesting.....Sometimes it depends on who is in charge. Some attendants do follow-up and will move those extras around not always to the passengers liking, but making them comply with safety.
At least I see that pretty much gone are the days when business folks carry their whole life vs. checking in one bag.
I can say that if someone next to me has tons of toys and it becomes necessary for me to get out, they had better prepare for footprints in their lap. I think Mirabelle thinks along those same lines..........