I used to fly charter junket through asia and we had a regular gazillionaire who used to demand his tea and coffee mixed together in the same cup! He also used to bring onboard an enormous sports bag, which he would refuse to place in the hold. After a few trips (and serious curiousity aroused with his bizarre drinking habits) I asked what was so special about this bag - he unzipped it - it was chokkers with US$. Needless to say, he got whatever he wanted after that. PS: he also taught me how to play Blackjack - the right way.