
I used to take my pups to the vets to have their dewclaws removed with Mum & leave her in the car, bringing her in for a checkup after the pups had been done. One pup yelled like a stuck pig, Mum heard & was so agitated when we went to bring her in, she jumped out of the car so far & so fast she slipped, landed on her head and knocked herself out !!
(Thankfully, she was fine after a few minutes)