Hi, I've never experienced that - but think I would like to, as long as I still feel in control! and calm.
I know people who have, not sure if they felt they could have stopped it.
What do you feel before it happens? what signs?
Grounding yourself consciously may help, if you can go bare foot onto the grass/ground - this often grounds us.
Also eating/drinking - doing something physical - helps us to ground in our physical body.