I work at a bakery and am vegan. Whenever we get a new cake or vegetarian sandwich, my coworkers ask me to try it. At least one of them, H, is always surprised to learn that dairy products are in fact made from milk.
On the other hand, one of my coworkers brought in sesame sweets made without dairy, eggs, or honey and H didn’t believe they were actually vegan and kept making jokes about my cheat day.