Yesterday Lexie was barking EXTREMELY aggressively at my boyfriend's mom. Lexie goes to her house every Thursday..so I didn't know what was wrong. I went to go pick her up and calm her down and she bit me VERY aggressively and I now have a puncture wound on my finger. I was actually bleeding!!! But it didn't stop there. A little bit later she was trying to ATTACK a puppy WAY smaller than her on our walk and I bent down to try to calm her down and she snapped at me again...I didn't touch her this time though.
Now today my sister has her friends over (they come over every day) and she was so intent on attacking them that she ran full speed into the screen door!! And she barks AGGRESSIVELY rather than warningly every time she hears them laughing. (Which is a lot being they are 16 year olds in a FREEZING pool...
)
What should I do? If she ever bites anyone else she will have to be put down, and I don't know if I could handle that. With so many people coming in and out of our house, it is inevitable... We just finished obedience class and she FAILED the graduation exam. I'm at a total loss!!