I did that as well when I worked in Boston area. Would also ask them why they think the pats dont cheat, it was sad listening to the reasons. They didn't know anyone besides Bledsoe or Martin.
My brother and I were trying to find correct pronunciation of Brian Daboll's name (he always picks the wrong way to say the vowels. Always) so we asked bills fans leaving the panthers preseason game what the name of the Bills OC was. We asked close to 200 people and maybe 5 knew. Some people wanted to fight when they didn't know.