RUDENESS! Cant....stand....rudeness!

I was standing in line at the local Potbelly on my lunch break and this family of three was walking into the store with me. The daughter got in line, the mom and dad lingered around and then eventually got in line. Because they lingered, I ended up going in line in front of them. As we were moving up in line, the mother cuts me off and squeezes her and her husband in front of me. I looked at her and said "umm excuse me" and she goes "oh, we're all together." and I said "ok..." and she goes "well did you order yet?" I said "No I havent" and she didnt move. Then, her husband stepped on my foot, looked at me, and didnt apologize.

UUUUGH It would have been a wonderful moment to have gotten my sandwich so I could wack both of them in the back of the head with it.

what gets you guys ticked off? or just plain annoyed.