i had a similar experience when i got an extra firesteel from firesteel.com, i shot them an email asking if they wanted me to return it, and i got a reply from the owner saying i was the first person to report when the gave more than they were supposed to, normally only gets emails when they screw up. he thanked me for my "good character" and told to keep it. i firmly believe in karma, so i think its always the best policy to do what it right, not what is easy