What Language?

I overheard a conversation between Nellysa and Kelby the other night. Nellysa (who takes a spanish language class at school) often speaks spanish at home to practice. The only one who understands her is Clancy. The rest of us just look at her with a blank stare. The other night Kelby was commenting on Nellysa speaking in spanish. She replied by telling Kelby that he could have signed up to learn spanish in middle school next year, so why did he sign up for Latin? He told her that he thought latin would be easy because he pretty much already knows how to speak it. Nellysa said "no you don't", and Kelby said "I CAN speak Pig-Latin! So what if I didn't know they weren't the same."