This reminds me of the time we took our first family cat to the vet for the first time.
As I recall I was 10 years old at the time and my sister was 8. For reasons of timing and logistics my mother decided that she would have to take the cat plus us kids to the vet. The only problem was that my mother had not seen the need to purchase a cat carrier. The solution she came up with was a card board box and a strong piece of string tried to the collar as an ersatz leash on the cat. Needless to say this did not work.
Initially the cat made her displeasure known vocally, as well as with claws. Having wrapped the
maniac mincing machine from hell cat, and dropped her with towel and string leash into the box she was placed on the back seat of the car between myself and my sister. At which point us kids were given the clear instructions, keep hold of the string and don't let her out of the box. Within two minutes the cat had clawed its way through the bottom of the box and made a beeline for the nice dark space under the driver's seat of the car. Naturally my sister and I hauled back on the string to try to get her back. Up came the string, the collar, but no cat.
Now free the cat decided to investigate this interesting new place she was in. She crawled out from under the seat and onto my mother's lap. Not content with staying there, she then decided to see what was going on. The result was a loudly purring cat with its rear paws on my mother's lap, the front paws on the centre of the steering wheel, and its head stretched over the level of the dash board so she could she where she was going.
She 'helped' drive the rest of the way to the vets. A nice shiney new cat carrier was purchased the very next day.