Arthur Lih, founder and CEO of LifeVac (emergency choking rescue device that's now saved the lives of 591 people) was a trucker in Brooklyn until he retired after working his way up from driver to company owner. Then he made a life saving device

The LifeVac is used to help people who are choking when the Heimlich Maneuver and other emergency techniques have failed.

The American Journal of Emergency Medicine has published an independent study documenting the effectiveness of LifeVac in removing an obstruction from a blocked airway.

https://lifevac.net/

https://www.facebook.com/LifeVac
https://abc7ny.com/lifevac-heimlich-maneuver-choking-aid-device-inventor/6723406/

They cost 83 dollars apiece, buy one at  https://lifevac.net/shop-lifevac , select the one you want to buy, "Add to Cart" then click on "Proceed To Checkout" and enter your Credit card, because the life you save might be your own

And if you use it? They will replace it for free! Keeping one available to use again, and save another life! 

I heard about this on Mike Rowe's podcast https://embeds.audioboom.com/publishing/playlist/v4?boo_content_type=channel&data_for_content_type=5060313#Give%20Me%20a%20Sink%20Plunger%20and%20I'll%20Save%20the%20World