Slight segue but my recently acquired 2 years old Rua shivers, shakes and pants as soon as she (willingly) jumps in to the jeep - to the extent that I fear she may have a coronary! She loves dummy work and hunting but even refuses treats on the outward trip but takes them on the return and is (relatively) calm on the homeward journey.
She is an utter joy to be with, retrieving dummies - either launched with a .22 blank, hidden or dropped (today a 380 yard memory retrieve), hunts like a demon yet two months ago she was merely a child’s pet - so any thoughts re curing the shivers and shakes chaps?

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