Whoops

When you're following your colleagues escorting someone out of the premises there are some things not to do.
You don't want to wander off and get distracted by another punter in case the 1st one decides to go ballistic. You don't crowd in and jostle the group going out, leave the lead in the situation to apply or ease the pressure. You don't try and get past to have your fag break no matter what's going on.
You just move long behind them, keeping good eye contact with the doorman leading and a feel for the body language of the ejectee.
What you really shouldn't do unless you're very naughty is to see the ejectee lunge for the doorman and in one smooth sweep, bend, gather the muppets ankles together and lift them backwards. It looks a little silly and you do have to drop them to sit on their back. The surprised looks on the punters face and the front doormen's is sublime as their angry punter flies backwards and spins in the air until an abrupt face plant stalls his aggression quite swiftly.