[GregW11]

The number in each will remain the same, even if some are dumped. (so if for example you build a mechanism that would take balls out of the trailer, that would not subtract from the number in it.) As for if yours gets disabled, I'm not sure, but there may be an amendment to the rules that would make a disabled robot "off-limits" (perhaps the lights on the trailer will blink if it's disabled in this case, to make it easier to tell)