It probably took a group of Naval or Marine aviators a couple hours and a case of beer to come up with these. Or maybe a couple cases of beer and an hour. Every takeoff is optional.
Every landing is mandatory.
If you push the stick forward, the houses get bigger. If you pull the stick back, they get smaller. That is, unless you keep pulling the stick all the way back, then they get bigger again. Flying isn't dangerous. Crashing is what's dangerous.