We all started at some point pal..if he gets tangled up in the net just kind of try and lift it off him or let him gently wriggle out of it,make sure he's well away from the hole,do everything nice and easy and no sudden movements that'll cause him to skulk back into the hole.if he's still young he'll still be very excitable,especially if he's just bolted a rabbit.if you handle him a lot more when at home and he should stop nipping.atb