literal conversation i had with a girl who just graduated and is going to auburn:

her: are you in a sorority?

me: yeah, i'm an alpha gam.

her: oh, you must be really smart then!

...i just look at her for a second...

me: ohhhh i go to alabama, not auburn.

...then she just looked at me for a second... before laughing and walking away. 

and it took me a while to figure out why she laughed.