I once had a board member who was also on the board of Ryan Air, and he casually told me a story about when their CEO gave a presentation on adding a credit card -powered interlock on the cabin lavatories. He told them, “They’re my planes and if you have the nerve to shit in them you should have to pay for the cleanup”.

My colleague thought he was portraying the CEO as a cool guy and decisive manager, but I thought the guy sounds like a sociopath.

i heard from an airport employee once that they wanted to keep the airplane started in between flights. This was specifically so they can skip the preflight checks. Thankfully they were not allowed to