理由出来了：
http://www.nba.com/2013/news/05/12/lebron-on-flopping-accusations.ap/index.html
That hit came after he accused James of flopping on that shove to
the floor and questioned the officiating after the Heat took Game 3,
saying the Bulls weren't going to get the benefit of the calls.
Thibodeau had already addressed the media by the time the punishment
was announced and declined comment through a team spokesman.
解释了为什么会罚款：
1.因为公牛教练抱怨LBJ被推倒之后有假摔
（seriously? are you listening to yourself?被推倒的假摔...XD）
2.质疑裁判执法!抱怨判决对公牛不利。
整篇外电太长了啦！明天有考试没时间翻，如果明天考完还没有人翻我再来试试。
Wish me luck!