Ben Perry, a Ryanair passenger, posted a complaint on Twitter regarding the state of the bathrooms aboard a flight from Comiso to London Stansted. In his tweet, Perry stated, “@Ryanair after a 4-hour delay I get on board to then find your toilets/baby changing facilities like this it's absolutely disgusting! I mentioned this to a staff member after I come out of there and his reply was not our problem!! I see there customer care is not very important!!” The tweet was accompanied by a video of the bathroom that showed the sink and mirror covered in filth.

A Ryanair spokesperson responded that “All Ryanair aircraft are thoroughly cleaned by professionals at the end of each day, in line with industry standards, and cabin crew carry out a cabin tidy and toilet check at the end of every flight.”

Adding, "This flight from Comiso to London Stansted on June 8 was regrettably delayed due to air traffic control staff shortages (by 2 hours, not 4 hours as claimed) and Ryanair apologised to all affected customers, who were informed by email and SMS text message."

Last year, Ryanair was accused of no longer stocking soap in the airplane bathrooms. Cabin crew had allegedly told passengers that soap was no longer deemed “essential.” Alan Woodward, 71, realized that there was no soap in the bathroom when he was flying back to the UK from Spain with his wife Wendy, 64.

“It’s frightening that people are expected to use the toilet and not wash their hands properly,” Woodward, a former British Airways cabin crew chief said. “One stewardess told me she now brings her own hand soap to work. If it was a restaurant or a cafe, it would be shut down.”

Woodward’s comments came after Ryanair CEO Michael O’Leary had proposed charging passengers for using toilets in 2009. "We are serious about it. We are flying aircraft on an average flight time of one hour around Europe. What the hell do we need three toilets for?" he said. "It's not because we need to generate money from the jacks. But ... if you get rid of two [toilets] you can get six seats on a 737. They will all be scurrying to the toilet before the departure gate."

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Studies have show that airplane bathrooms are a veritable breeding ground for bacteria. Experts recommended that passengers douse their hands in anti-bacterial gel with 60 percent alcohol or higher after returning to their seat, to be safe. Also, passengers are advised to close the toilet seat before flushing. “Airplane toilets have a powerful suction, but some of the particles [in the toilet] may be dispersed into the air,” says Dr. Neil Nandi, a gastroenterologist and assistant professor at Drexel University College of Medicine.

Passengers are also advised to avoid contact with all surfaces in the bathroom and to wash their hands for 15 to 20 seconds, even if it means having to repeatedly touch the faucet. This should be followed by the use of an anti-bacterial gel.