It is hard to say who is more responsible, the passengers or RyanAir themselves. RyanAir wouldn't do all the crazy stuff they do if the passengers weren't agreeing to do all the outrageous things they do for cheap airfare. A few years ago RyanAir was fined for having people in the lavatory during take-off and landing, since there were no empty seats. Who agrees to do that (and who thinks that is a good idea from an airline standpoint)?