I can just see it now.
''Please get back over the hoardings. We are Special Service Stewards, trained in the use of tazers and unless you back up and stop calling the referee`s assistant a blind, incompetant cuunt, we will have no alternative than to zapp you motherfuckers''
The SAS go on ''Training courses'' as well but we dont want them stewarding our games.
Armlocks that can snap a violent assailants arm are for the police and their elite snatch squads and should not be taught to shaven headed, Rottweilers who masquerade as stewards at Withdean.