He's a bit sensitive to the sunlight and holy water. that's about it, but he does have a hard time pronouncing food names in any language. He would most likely make up names as he goes and. He also has a very big fear of cats.

Slim was pretty much there with him all the time. So he had no problem learning and adapting to the human world.

Cather: I know I did so many bad things to you, but I want to make it up. Ya know go out to eat or something. What do you say friend?