Just because someone is smart in one area of their lives doesn’t mean they are smart in all areas. Addiction and perversion can overrule much.
It would not have taken much effort if he’d really wanted privacy; a window seat at the back of First Class (with a bulkhead behind) would do for a position in which nobody else could see the screen of the laptop or video player. I’m thinking he may have also been liquored up and not reasoning very clearly.
“Just because someone is smart in one area of their lives doesn’t mean they are smart in all areas. “
Tell me about it. A lot of very smart people vote Democrat, or vote for Open Boarders Republicans.