I wish I were better at telling how old kids are, because I think it would have helped me a lot this morning.
Two little girls came in with their mom. I would have guessed they were 5 years old. They had the following interaction with one of my coworkers:
Little girls: What's your name?
Coworker: My name is Alma. What are your names?
Girls: Elmo!?
Coworker: Um, no...
Girls: Wow! Why are you in a costume!?
Then they hugged her, then they ran away. I can't tell if they were trolling or if they really thought she was somehow associated with Elmo.