"My grandmother and my cat both died..."

At this point I'm beginning to think I could beat out Bill Cosby in the list of crazy things kids say. Last week one of my boys said he had seen "a flock of moose in the woods". After a language arts lesson on things like idioms and homophones, my students walked around for the rest of the day calling each other "oxymorons". And the capper? This afternoon while cleaning my classroom I overhead a child in the hallway saying, "Yeah? Well my grandmother AND my cat both died!"