I've seen the occasional apprentice in one of those bins.
You can fit a small Catering guy in too, although it needs to be a team effort 'cos they tend to kick a bit. Blankets are useful.
While IMO it was a dumb thing to do, surely a kick in the arse and an all-staff email about not sticking kids in lockers would suffice? I thought Virgin were into this sort of inane theatricals, it's not surprising if one of the staff goes a little far with the flair thing.
It's no dumber than an aborted 'stunt' a Virgin crew tried a while ago, where they all brought along replica pistols (pretty real looking ones) and were going to stage a fake hijack on their flight
. Pre 9/11, but the concept still displayed an outstanding lack of judgement. They didn't get sacked, in fact Virgin management were pretty huffy with the AFP for kyboshing it until they threatened to start charging people.