was the stack accidentally or deliberately sent over?
if it was an accident than everything that has been said previously (that the crews are responsible for setting up safely) applies
OTOH in london there are a number of very negative and dysfunctional people who attend parties merely with the intention of causing problems. some crews deploy security to keep these undesirables out (with varying degrees of success).
they apparently claim they “want to be part of the event”, but are trying to bully their way in, by attempting to take territory in the building and intimidate others. this including disrupting the activities of party crews, and attempting to steal or damage equipment.
