1489
Off by one solitude
(fed.dyne.org)
Post funny things about programming here! (Or just rant about your favourite programming language.)
Inside the building it's the first floor, even if it's exactly at the sea level altitude. Outside the building it's the ground. Basement levels start at minus one, there is no zeroth floor.
Exactly, the idea that you go up a floor because there's a roof over your head is very silly.