Me and 2 friends were out yesterday on some permission, we got 5 and lost a few more. It seemed to take a while for them to bolt. My friend, the driver, took his 6 month old saluki x greyhound pup out and it was galloping about with my friends collie x whippet/grey and it ended up lame with a bruised knuckle. It was the pups first time ferreting with it being young but it was alright till it lamed itself, so we decided to call it a day to get the pup back and avoid risking further damage to it