The air-head scientist sterotype is true

Totally true. I know because I'm married to one.
Yesterday "the husband" needed to travel abroad for a few days, job related short trip to England. He prepared all his things himself, of course, and at 8:00pm I took him in the car to his campus so he'll meet the his boss, who's taking her car to the airport. So far so good. He even managed not to over pack as he usually does and this time he hoped that he'll be able to take the small rucksack with him in the cabin.
(I'm not sure that Easyjet will allow that as he has some toiletries and the policy on liquids in the hand luggage is quite strict).
Anyway, when I arrived home, my son told me that "the husband" just phoned in a panic estate as he forgot to take his passport with him.
So I have to take it and go back to give it to him.

How can someone forget the passport, of all things?
OK, I did it myself once, but I was 14 years old at the time and never again!
It's "the husband" after all who's always telling that the 3 essential things for any travel are the 3 ps: passports, tickets and money (at least they're 3 ps in their Spanish translation: pasaporte, pasaje, plata), I wouldn't be surprised if he also forgot his credit card!

At the same time he's a brilliant researcher and scientist. So he does have a brain and he know how o use it, at least partially!

As my American friends would say: Go figure!