She was just sitting there on her phone and a four and 6 year old were just wandering around, messing around, all over the food court. They even left her sight a few times, she didn't seem to notice, too busy on her phone.

So I tracked the kids to make sure that she was in fact their mom (or whoever was there with them). And I stood near her until she noticed me and then bent down and said

"Excuse me, I don't mean to bother you, but you might not want to let your kids wander around since known sex offenders shop here."

She responded with an "omg, oh thank you." And then I left.