You should be careful around aggressive dogs.
Lucas sees Sarah's new dog barking loudly and growling.
Lucas wants to meet the dog.
Lucas asks Sarah if he can meet and pet the dog.
Lucas runs over to the fence and grabs at the dog to pet them.
Sarah explains that he is a rescue dog who is skittish around people but allows lucas to throw him some treats from a safe distance.
The dog bites lucas's arm and lucas needs to get stitches.