the main one I get..mainly from family is "Oh do you work for ATA?!"
Others include mispronouncing Lambda as LambAda..so people get some real lame jokes there.
My sister and other family members, when I wear letters that have the fancy Upsilon (like my sig), they tend to say 'AAAYYYA!" WOMP
Upsilon is almost always mispronounced UP-silon as opposed to OOP-silon.
Whenever I wear my letters around my family (being that we grew up in a gang infested neighborhood) or childhood friends, say "damn that looks like you're throwing down the fork" (reference to a gang >:O )
And us and Alpha Psi Lambda get confused all the time because of the Alpha looking like a Lambda and the Psi somewhat resembling the Upsilon...I;ve gotten a couple of A Psi members thinking i was one of their brothers LOL