:shock::shock:When I wasn't looking somebun was a-digging:shock::shock: I've had them for over 2 years and they've never so much as scraped the lawns!! The hole was at the side of the hide box which was in a dark corner under the canvassed corner. The litter had been moved slightly so they could have access to it....Perhaps they were trying to hide it:lol::lol: Do you think the darkness could have triggered some tunnelling urge?? Could it be because they're not used to being in such a large green space??