It does not take a genius to figure out that constructing a house while standing on the twentieth story is very dangerous. A lot of fatalities occur at construction sites, from falling off the high buildings to having a crane fall onto your head or even the whole building going down with you. In 2013, there were more than two thousand fatalities at construction sites in the US alone. This is pretty risky considering that the pay for construction workers is not very high. Most of the workers also develop breathing problems from inhaling lots of dust and cement.