»pain and death«

how come bullets and shit hurt people that are "unplugged"? don't they know that the bullets are not really real and really neither are they
(you know what i mean!!) they shouldnt die or have pain inflicted upon them because of what morpheus said in the dojo scene:

Quote:

"do u think my strength or my speed has anything to do with my muscles in this place? do u think thats air your breathing now?"