The year was 2004. Spring Fest, lake La Salle, UB North Campus. Lil Kim had just called us Buffalo State. We boo'd her mercilessly until it was time for Nas to play.
2006: SPAC: Counting Crows thought they could get away with changing their sound to some reggae nonsense. We weren't having it. Booo!
2009: Pepsi Arena, Albany: Lars Urlrich can no longer play any of the fills for any of Metallica's early work. He just stands and claps his sticks. Booo!
I've got more. No one was removed. Ever.