Nothing's too mucky for Ryanair.
Only last week (was it last week? So much ahs happened in this beleaguered country since), there was a scandal involving a local radio presenter on an AerLingus flight. When the plane was taxiing, he placed a magazine on his lap and proceeded to masturbate, while seated between a man and a woman.
So the bould O'Leary ran an ad, proclaiming Only Wankers Fly Aer Lingus.