My parents wiener dog hates children. He will not allow a child to touch him. My kids are a different story...he loves them. He grew up with them from a pup. He will sleep cuddled up next to them and will allow them to carry him like a baby. Let another child try this and he will bite them.
This link should be interesting
Top Ten (10) Most Dangerous Dog Breeds | Pets Do
I have two Greyhounds. They never show any aggressive tendencies....but, I never allow children to get in their face. They are very large dogs and if they were to bite, they could take a childs face off.