What's Your Business?

Went to get some pho. I had stopped by to get some groceries before and had a bike basket full of frozen pizzas, cans of soup, and soy milk. The waitress, a woman about mom's age took my order and then asked me "chu lam cong viec di? -what's your business?" pointing to the basket. I replied, I do massage therapy. She thought I was a door to door salesman of some sort like the Swan Ice Cream Truck guys back in Mesquite who would stop by to sell frozen goods.