O yes
Will be my third summer with them, very resonable bunch.
Mainly cover litter picking at festivals, which Ive never bothered with but do stewarding at Glastonbury, Latitude, Big Chill and Reading amongst others.
Can be very long shifts usually 12 hours

8am til 8pm or 8pm til 8am for example. You get paid though, usually £50 a day and often cash in hand at the end of the festival.
No strict uniform apart from yer tabard, only other thing is the deposit which is a one off payment of £160 for the big festivals I've mentioned which you get back in september/october.
Often if you are working on the car parks at say Guilfest or Big Chill once all the cars are parked up you can often take days off and even the days you do work its pretty much a walk in the park!