2006 and it's not even close. Yea, nothing will ever be as bad as 2006. Ever. that was bad but not frustrating. the cubs were horrible and nobody cared about them by mid to late may. now 2004, THAT was frustrating. April of 2006 was fine but after starting May 2-12, yeah, that season was a lost cause. It sucked, but wasn't frustrating. This year and 2004 have both been the most frustrating season since I've been a Cubs fan. Agreed