He became increasingly feral as time went on just for something to do, despite that being the exact opposite of what happens when you hang around with people all the time. His one glorious moment came when a squad of "Warpies" assumed his sound-mimicking powers were no threat because they'd never seen Police Academy. His character was such an unemployable failure even in the X-community that his "happy ending" was finding and moving back in with his parents.
Read more about Kylun and seven other strange X-men at Cracked. Link -via Rue The Day