Watch Your Head
Is it really that difficult to build stairs? We’re not going to pretend that we know how the physics of stairs works and how much support it needs to keep from collapsing under your weight. However, we think it’s pretty safe to assume that you’re not supposed to bump your head while ascending staircases.

For some reason that goes beyond the grasp of human understanding, this contractor didn’t punch a hole in the ceiling above. Instead, they’ll leave it up to the staircase-walker-upper to duck every time they go up. That’s why you shouldn’t hire the cheapest contractor available, folks.