If a bar of copper is brought near a magnet, the copper bar will be repelled by the magnet (B). Copper itself is not magnetic, but it sets up electric currents when a magnet is brought close to a bar of copper. These electric eddy currents push the magnet away from the copper bar. Magnetism and electricity are related and the interaction between the copper and a magnet is used in power plants to generate the electricity that we use every day.
This probably means that something you had planned to turn out well, ended up going against you. The scenario flipped it's self around and you were so said "betrayed" by your own plan or game.
The enormous person in the next room is bizarre.
The parents are responsible for the supervision of their kids under 18. Which would make the parents legally responsible for them.