I think Zeke should be fine--just keep an eye on him for a while. A while back, my uncle had a lhasa named Ginger (RB), and she at chocolate all the time--he didn't know any better. She lived to be 15, and never had any problems. I'm not advising anyone to give their dogs chocolate--mine aren't allowed near it!!!, but just emphasizing my point that Zeke should be ok!!