Where Did We Go So Wrong?

I am totally befuddled (not sure on that spelling). My 6-year old stole money from her Grandpa's truck last night so she could buy some books at the school library sale. I was totally mortified and wondered where I have gone so wrong in raising her. How could my child ever steal? Did we tell her that was the wrong thing to do? I think I have totally failed as a parent and she is only 6!

Only the "bad" kids steal right? Only the ones whose parents don't care a lick? But we do care and we do want her to be good. We try so hard to make sure she says Please and Thank you and is kind to others. We make sure she does her homework and read with her every night. So where did we go wrong? Why when she knew where the money was did she say, "Grandpa won't care. Just take some." She admitted she knew it was wrong and did it anyway. I suppose that is what is most upsetting is that she didn't care it was wrong. I am SO upset I just don't know what else to say.

To punish her we are not allowing her to watch TV for 1 week and for two of her recesses at school today she had to stay inside and think about what she did wrong. I sure hope this works. I am still so upset that she even thought about this in the first place. Is there anyone out there who has had a child do something like this? I need some reassurance that I'm not the worst mom in the world, or maybe some confirmation that I am.