The only trouble I've found with my edible garden

Thanks to a very thoughtful gift from my mom (Is using "thoughtful" and "my mom" in the same sentence an oxymoron? I mean, really, who knows you better than your mom?), my planter boxes on my 4th floor porch are filled with herbs.

Saturday night was Italian night at our house. I tore off a basil leaf for Jack to sample from the "garden." He didn't bat an eye as he bit into the leaf.  

Next day, as we were walking around the city streets, Jack on Daddy's shoulders, Jack grabs a leaf from a tree and promptly takes a bite. Not so delicious!