My house has never actually finished being 'done'. When I was little, my father use to yell 'Don't go near there! There's - nails, screws, carpet tacks, live wires, varnish/paint/caulk/compound drying" Everytime I see anything under construction, I always take the 'better safe than sorry' approach and walk around or walk through as I normally would even if it looks perfectly harmless.
This is especially true around my families homes - the women say 'Cover it up or rope it off so no one goes over there' and the men say 'Any idiot can see I'm doing something over there, if they get hurt that's their problem!'
Besides, I wouldn't want to get yelled at