More likely the AC to save a few notes, MfH... being one of them immigrants anall...
I tried to tip a Ryanair flight attendant once and she didn't understand the concept at all, erm. It was back when one could pay for one's coffee in used notes. She didn't have change to hand so I told her to keep it as a gratuity. She ended up sending a (apparently) homosexual male colleague to compensate me with scratch cards to the value of the change. I explained that I didn't want them and told him that the pretty girl could either keep the relevant coins or they could scratch the cards and split any proceeds (probably less than a 38,456,325,674,987/1 chance with a top prize of stg£0.58 knowing that O'Leary cunt) between them. Not sure which option she/they ultimately exercised
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