On my flight ORD - IAD Monday last week the couple next to me brought along their large, um...how do I politely say this, "accessory wedge" pillow. Of course it would not fit in the OHB or under the seat in front. The FA made it very clear that he was not going to touch it, but he allowed them to place it at their feet.
During the flight they were reading an "Erotic Manual" to each other. It was obvious that they had not flown very much, do to all the questions they were asking me about airlines. Later we encountered some minor turbulence and the woman was hanging on to me every time we hit a bump.
Needless to say it was an interesting flight.