Pearlsasinger
Up in the clouds
Could you shut the field gates, so that at least she hasn't got access to the full 30 acres?. Then you could use electric fencing to fence her into a smaller space and maybe catch her there or ask OH to put headcollar on while you are nearby, if she is more used to him talking to her and then leaving her alone. Then you could take over the leading so OH is not having to deal with the stroppiness. Is she actually a delinquent when being handled? Or is she just asserting her independence when she is in the field?