My ACDs have no problems with vet handling...Fiona maybe a bit wiggly, or if she doesn't like something she flails a little, but not at all aggressive or "will bite". Romeo's just whatever dude.
Sometimes when I show I'm walking around and someone wants to say hi to her, they say Oh, she's friendly?! And I'll never forget a popular vendor guy said Oh, a nice
cattle dog?! We were at the specialty and they were all nasty dogs... It makes me sad