I don't know... I sort of disagree. She wanted a banana... that's not a crime! Seriously, everyone is human.

Now, what is she supposed to do after you ask if there are any extra bananas? Pull the one out of her sweater, and say... "umm... there is this banana, but I was hoping to save it for myself, would you like it?" Would you have taken the banana? I'm sure either way it would have been hella awkward, even if you said no thanks.

Now if she had taken a bag of Sun Chips... well... let's not even go there