Are you calling me fat?!

My friends and I have this running joke. Whenever someone says anything about your appearance, the proper female response is "Are you calling me fat?" For example, if someone says something like "Oh, your skirt matches your eyes", you would say "Are you calling me fat?"

One day at work, I got the munchies and I raided the kiddush closet to see what was leftover from the Shabbat Kiddush. I needed one of the maintenance men to get the key for me. When he saw how much food I was taking - I was just shopping in bulk so I wouldn't have to bother him again - so when he saw how much food I was taking, he said "oooh Arooona....what...????" I said back " Well, I have to fatten myself up". He said back to me, "awww....no you don't...."

Are you calling me fat?????