If you are wearign a pre-war outfit, which gives you +1 Agility, and then go to a vending machine and return it, the +1 AGI remains, although you're not wearing it anymore.

Oh btw, is it an easter egg that you can devour those skeletal remains of Vera (and I believe of Sinclair, too) ?
Funny how you can't eat Ghost People, but chew on skeletons.