The fact that he actually calls sick children in hospital using his Winnie-the-Pooh voice is heartwarming in and of itself, but this story really stands out:
Jim: One child that I called was dying of cancer, Pooh called her, and she started to giggle. Her mother was in tears, just crying. She said that was the first time her daughter had smiled in six months.
Whenever he brings up his youngest daughter, he insists that he did not adopt her, but that they "adopted each other."