I think that the CEO of Ryan Air had suggested it first. but then decide not to follow through. But if the problem was that the aisles needed to cleared so that people could go to the toilet, why not charge for using the toilet on the plane. I am sure some analyst can calculate the extra profit that can be earned and then demand it be implemented.

I remember traveling with my then young son and he wanted water and I had to buy a bottle on US when they decided to charge for water (not just soda, even water was not free). I hope that saner heads prevail and that these wall street types who only travel first, do not dictate how airlines should treat customers even worse than it is today.