From the piece:
"Two-year-old Ryan Gildow remained hospitalized Monday night following surgery. He was listed in fair condition after the bullet was removed."
As has been mentioned, this was a .380 and not known for it's overwhelming power, and it was fired at the ground (concrete floor?) to boot. For it to still be lodged in a two-year-old's leg means the round was nearly spent or (most likely) only a fragment hit the child. Very fortunate indeed.
I'll add my prayers for the little boy, the parents, the owner of the shop and yes, even the idiot who screwed up. As said by Levy78, perhaps this story will cause someone to check the chamber before they handle a firearm when they may not have done so otherwise. Some good may come of it and we will never know.
Yes, let's hope something good comes out of this. It's just so sad when things happen to the little ones. I'm sure the clerk feels worse than anyone.
Accident's do happen. My deceased husband was a police officer. One time he had to pull a 16 hour shift. When he got home he took his service revolver out to unload it before he went to bed and he dropped it. Had it discharged, it would have hit me. We both just looked at each other. He felt very bad. It scared him worse than it did me. This was a man who had gone through the service and the police academy. He had spent hundreds of hours at the range, and yet it happened. I'm sure fatigue from the long night was the reason it happened, but, none the less, it happened.