I would still try and exercise a little judgment in the code example requirement. After all, python is one of the languages I like and mystring[-1::-1] to reverse a string fulfills the 'don't call string reverse requirement' but doesn't tell you anything other than I know and like array slicing in python. Also, I initially tried signing in with facebook connect and it didn't like it very much. I allowed it to do what it wanted to do and I just got redirected to an openid page that was blank, then back here and it asked me to sign in again. Not sure who I would talk to about that, but figured I would mention it. Maybe you should make fixing the facebook connect signin your programming test for stack overflow candidates?