she's not screaming, she is laughing at you because you just don't get it. One should NOT have to ask for treats, they are to be expected! She just thinks you are too funny 'cause you don't understand what her expectations are - yet!
She was literally screaming for her treats in this picture tonight, but she looks like she's got one of those scream masks on
This picture reminds me of one I saw in the Vets office but it was a dog but I swear the expression was the same, Under the Dog with the weirdest look on its face it said " What do you mean I'm not protected against snakes"