As an ER doc and former EMT ... I get it, and kind of side with your wife.

IT guys, you don't cruise around town with a few extra pentiums stashed in your truck, do you?

Sometimes work is work, and work isn't home.

And let's be honest, ICU docs are, for the most part, NOT trained in first aid. I'm guessing she's IM residency, ICU fellowship trained? If so, even less likely to know first aid. Where do you hide money from an internist? Under the patient's bandages...

Point is, she's probably exceptional with sick people, but that doesn't translate over to the field. There's no labs, medicines, nurses, radiography, etc, in the field. And finally, she's probably worried about liability. My FAK has dumbed down over the years due to this. Hell, I passed on a sweet airway kit for $60 a few weeks ago, mostly for that reason.