It's always been interesting to me how people react to vegan treats.
I baked some vegan brownies (no pics because my camera is MIA -- I think it's in California with Kevin and Mary Ruth) and brought them to work on Friday. I walked into our break room, said, "Have some brownies" to the two people who were there, and set them on the table and walked away.
I don't like to make a big deal of the vegan thing. But, since everyone knows I'm a vegan, most of them are going to put two and two together and figure out that the brownies are probably vegan too. The only person whom I pointed out the "vegan brownies" to was another vegan who crosses through the cath lab every so often.
Brave or more worldly omnivores will try a brownie and enjoy. And, of course those people who have no idea that they're vegan will see brownies and try one. I don't EVER bring mediocre vegan food -- I hate to give vegans a bad name.
Those who are less experienced might laugh and stay away from the vegan brownies out of fear that they're going to taste funny. They might "dare" someone else to try one. Then that person will try one, say "mmmm that's good!" and get laughed at -- "Ha ha ha you ate vegan brownies!"
All in all, though, I like bringing treats to work. I love baking, and I love eating, but if I didn't share, I'd eat the whole tray of brownies myself. On top of that, people learn that you don't need animal products to have a tasty sinful snack.