My personal favorite is the "family" in an extended stay hotel who send one kid running and screaming down the hall to push the button to call the elevator while the rest of the group takes their good sweet time getting ready to leave. The kid then holds the elevator, while shouting back and forth to the rest of the group, as they slowly amble down the hall. In the meantime, other guests cannot even call for a different elevator as the presence of the one being held on the floor prevents another one from coming for other guests. It's especially lovely when done at rush hour and other guests need to leave for work.