Aside from recharging the brick, what about recharging the ability to use a brick since the last time you used one? Since it's annoying when rich people spam the bricks enough that there's never an opening, there aught to be a cooldown of about 1-2 minutes* for each. This way, they're not gonna be spammed so hard, and the only ones who will ever notice it are the ones who spam them a lot. *I have no idea what numbers would be right here, so, whatever fits better.