House Of An Athlete
Assuming that the door actually opens up to the room, the only person we can think of it belonging to is an athlete who is vigilant and always remembers to take the jump. Imagine waking up in the night for a glass of water, opening the door and forgetting there is no ground outside… 
Prototype Basin
I think it is more the fault of the owner who got this basin installed than the person who fixed it. Did they not see the size of it before approving it for installation? Even a bird can’t fit in here comfortably to take a bath, let alone a normal human-sized hand. Who are these small basins made for anyway? Snowhite’s Dwarfs?