According to Jim - Season 5
Jim happens to get free front row tickets to the Cubs game and wants to take Kyle to his first game. Unfortunately, Cheryl insists Kyle attend his first day at kindergarten instead. Jim decides to con Cheryl. Ryan shocks everyone by offering to help with the dishes. Jim gives him a talking to and forbids him from giving Dana an expensive anniversary locket because it will make Jim look bad. Ryan gives it anyway. This means war: Jim against Ryan.