Holy loving stuff cakes.<3
QFT
What happens in reality:
Brick physics are only simulated client side, so you can't stand on physical bricks (although they are shoved around by players/vehicles and if one falls on your head it would bounce off). This also means that the server doesn't know anything about the brick physics, so you can't go totally rube goldberg and have, say, a falling brick trigger a switch or something. You can build neat stuff like the catapult, though.
Are you loving blind?