If your Con modifier is negative, do your hit points gained per level "bottom out" at 1 or 0? That is, if I have a -2 Con modifier and roll a 2 for my new hit points, is the effective roll 1 or 0?
Mathematically, 0 makes more sense, but that means that a low-Con character (Raistlin, I'm looking at you) will functionally never gain hit points.
I'm sure this is covered in the Core Rulebook, but I don't have my copy here.
Hitpoints and skills both, you gain a minimum of 1 every level. You cannot level up and gain zero or loose either one.
Thanks; that's what I thought.