If I'm just nipping out for 5 minutes and my mums in then I'll leave them, but not for any longer than that. The trio have a really tall open top pen but I don't feel safe leaving them in it. It could also possibly be knocked over by a really large dog and there's always a possibility that a dog could escape from someones garden, oh and the gypsies have also been trying to steal the runs whilst I'm out and it wouldn't suprise me if they attempted it again even with the rabbits inside them :evil: