Forget a border collie as a lap dog.
They have to be one of the most active breeds.
We got one, a rescue, not knowing how active they are. Not good house dogs and we don’t have a fenced yard.
Managed to keep her somewhat happy with puzzles in the evenings and walks on weekends.
But when she got bored she’d chew the furniture. Common I’ve learned.
Oh, one more negative, they shed like mad.
I heard of one Border Collie who passed the time waiting for the leaky faucet to drip. Mine grew to be huge (50#). She lived to herd - anything, anywhere. We lived in the suburbs, so she had to content herself with herding the neighborhood kids.
Total bliss, for her, was a kids soccer match. Every time the ball would try to ‘break out’ of the herd of kids, she would be there!
We tried to have her bred once, but there were some cows near by, and neither she nor the stud could take a break from herding long enough to finish the job.
She was very jealous of the baby (our youngest), but she would also defend her with her life. Our youngest had to learn to crawl going in circles.
Fine dog, but not meant for laps. She died 6 years ago...