So you were the site organizer, and I bet you told people in advance what they could expect to be available on-site, right?
They weren't in the wrong for being prepared, but for not listening to you.
They weren't in the wrong for being prepared, but for not listening to you.
It’s the equivalent of bringing a machine gun to a shooting range and spraying bullets all around you (missing everyone, but still causing a bad time for all involved) because you don’t even know how to hold it properly.