Conversation so far:
What did George Brett do after leaving baseball?
Following his playing career, George Brett became a vice president of the Royals and has worked as a part-time coach.
How did the royals do under George Brett's leadership when he became a vice president of the Royals and has worked as a part-time coach?
Are there any other interesting aspects about this George Brett article besides becoming a vice president of the Royals and a part-time coach?
In 1992, George Brett married the former Leslie Davenport, and they reside in the Kansas City suburb of Mission Hills, Kansas.
Has George Brett done anything else aside from baseball?
George Brett has continued to raise money for ALS. Brett started to raise money for the Keith Worthington Chapter during his playing career in the mid-1980s.
Does George Brett campaign for any other charities or organizations?
George Brett and his dog Charlie appeared in a PETA ad campaign, encouraging people not to leave their canine companions in the car during hot weather.
Does George Brett know someone with ALS?
Any other charity that George Brett campaigns for besides ALS?

Question: What other hobbies does he have?
Self-contained rewrite: What other hobbies does George Brett have besides charity?