Marko was turned in to us because his owners were moving and can't take him with.  Marko  grew up with children and he was said to be good with them.  He was not neutered when he was turned in and he liked to lift his leg on things.  He has since been neutered and we are working on stopping the marking.  He is a little nervous when meeting new people but once he gets to know you he is a kissy pup :)