Those who've spent any time in the 'Magic Kingdom' can relate to this:
Younger Saudi men, of the 'yuppie' type, tend to douse themselves with aftershave, (stores sell LARGE bottles of the stuff), to the point that, were you to find yourself in the middle of a crowd of them you'd likely expire through lack of oxygen.
So........my late wife and I, (late 1980s), were sitting in a back-loading airport shuttle, heading from the Sofitel to Charles de Gaulle in Paris, when a familiar odor wafted up from the entrance......followed by three swarthy guys in business suits.
A lady at the front of the bus turned around and asked them if they were with the hotel......to which I piped out "No, they're Saudis".
It was standing room only on the bus by that time, and the three were right next to me..."How you know we're Saudi?" they asked......"I just know", I replied.
All the way to the terminal they jabbered amongst themselves in Arabic...."Yadda, yadda yadda - Saudi - yadda yadda Saudi".....with glances at us every time.
I never did tell them that I could smell them a block away.