It employs low wage immigrant workers.
This is the law that states that for every action there is a reaction. The force that you hit the table with returned and reacted upon you. Due to this reaction, the coffee in your cup spilled.
I'm sorry if some of these are wrong, but I just read the story and it sound likes Sir John Willard, Pharaoh, Rupert Bleibner,Tetanus, and Poirot died. Hopes this helps!
