From Bearing Arms:

Why are two characters in search of “the perfect nanny”? Lopez fired her nanny towards the beginning of the episode because a gun fell out of the nanny’s purse. The way ABC set the stage made the nanny look like a rogue cowboy. A purse got moved and the gun fell out of it, not in a holster or anything.

If there were to be a complaint here, it’d revolve around ways a person could achieve responsible off-body carry. But that’s not how it all went down. “What the hell is a gun doing in your purse?” Lopez asked the nanny. She replied, “It’s for protection. I have a permit.” Lopez declared, “Not in my house you don’t.”