Have you ever considered hiring plainclothes security at these events? Not bouncers per se, but sharp eyed enthusiasts that are intelligent enough to spot shady dealings and anti's that are there to start trouble, yet cool headed enough to diffuse a situation before it gets out of hand?
If interested, PM me. Most of the guys I work with are ex military, and quite a few of us do security on the side.
If interested, PM me. Most of the guys I work with are ex military, and quite a few of us do security on the side.