How to cut the queue effectively

We had dinner at Pasta Mania in Funan before the Parokya ni Edgar show. I was in front of the line waiting for an available queue to open up when suddenly an Auntie behind me said to her husband "Here, take a look at the pasta you want". All the while I thought they were really just going to take a look at the pasta and go back to the back of the queue. However, when the queue near the pasta they were looking at suddenly opened up, they took the queue disregarding everyone else who were there first. What the!?!? Some people here really have no manners. Grrrrrrr.