Technical fouls and coaches

[lukealex]

Reading old threads I came across this one:
http://www.officialforum.com/thread/19037

My question is about the technical fouls on the coaches. If you don't want to read the old thread, here is the situation. Head coach gets one T arguing an intentional foul call. Another intention foul is called shortly after the first. The assistant coach procides to argue and gets one T then ejected. Can someone clear this up to as why the coach (with one direct and two indirect T's) also gets ejected? What are indirect T's?