We have two dogs and are planning on adopting a third one (all rescues). If you have three or more dogs, do you walk them off lead in public spaces? We've been looking at those fields you can hire where it's just you and your dogs for an hour or so, so we could let them all run around without worrying they may get into any kind of trouble with other dogs or people (they are great dogs but keeping tab on three at once may be difficult and we don't want to take any chances). Does anyone here use these fields? What criteria should we look for when looking for one, please? Thank you.