The rule is that dogs must be on their benches unless being judged, prepared for exhibition or exercised. However, many dogs never even see their benches, and people sit by the ringside with their dogs either in cages, on trolleys or on blankets. There is really no policing of this rule at any show I have been to. Provided the cages are not left somewhere in the way, such as gangways or fire exits, then no-one seems to bother. There are often polls conducted on dog sites about whether or not the benches are necessary, and I would prefer to be able to 'book' a bench with your entries if you want one (I often enter 3 or 4 dogs and could manage with just one bench for my belongings. The only show where the public really come round the benches is Crufts, at most other shows they tend to be round the judging rings.