Arnold's Love Child -- Nicest Kid Yo

5/18/2011 9:32 AM PDTby TMZ Staff Arnold Schwarzenegger's love child with Mildred Patricia Baena is a studious, athletic, fun-loving, charitable, yes-ma'am-no-ma'am kind of kid -- according to the boy's neighbors.People who live next door to Patty and her son tell us, the boy "is the type of kid you just want to be around. He is so sweet, funny, and handsome."But that's not it -- we're also told he is extremely well-mannered and smart, loves sports, and is even involved in door-to-door fund-raising for local charities.The apple falls far from the tree.