Everyone knows about the extra fees airlines are charging for everything now. From the $15 per checked bag to the $6 can of beer, most frequent travelers know that nothing is free in air travel anymore. But, did you ever expect to have to pay to go to the bathroom at 35,000 feet?

European discount airline Ryanair has floated the idea of charging passengers £1 to use its toilets. The idea would be to add a coin slot to the door. What if you don’t have any change though? Will people just start going to the bathroom all over the plane?

While I have seen pay toilets in many countries; adding a pay toilet in the air seems like a new low (or high). The current costs of air travel already strain most budgets. Adding bathroom fees could flush travelers right down the toilet.