The joke relies on the fact that keys unlock doors, this is the cause, just like the prior one relies on the assumption that people rushing to one side crashes the plane.
If there are 10 comments explaining what a key is in the context of music and I add another that says "I understand what the key refers to but how was the door opened", one can only assume I lack the knowledge that keys open doors.
Sometimes people understand the more complex behaviours but somehow miss the simpler explanations, it's happened to me before.
If there are 10 comments explaining what a key is in the context of music and I add another that says "I understand what the key refers to but how was the door opened", one can only assume I lack the knowledge that keys open doors.
Sometimes people understand the more complex behaviours but somehow miss the simpler explanations, it's happened to me before.