I seem to remember a private security firm being used briefly in the East End a few years back.Did'nt go down well with the fans and they seemed to disappear after a few games if I remember correctly. Was actually quite funny. They started off strutting around pretty cocky but I got a feeling they thought had bitten off a bit more than they could chew.I don't think the fans were at all intimidated by them,and let them know.It had the feel of night club bouncer/bullies being shown up for what they are,being out of their depth when they are outnumbered.