Their personalities shine through their words

Will and Emma both had a tooth pulled at the dentists this week. Emma's was lost. She painstakingly wrote a note to Glenda (who happens to be her special tooth fairy) explaining the dilemma.
After two nights of having Will's tooth and Emma's note under their pillows with no response from the tooth fairy, Caroline, followed by Emma and Will, burst into her parent's bedroom this morning to ask,
"What is up with all the tooth fairies these days?" Emma reasoned,
"She is probably just behind schedule and overworked. Maybe she'll bring our money tomorrow night."
To which Will said,
"That's good because maybe she'll pay interest!"
p.s. Glenda did manage to arrive with a disclaimer,
"Tooth fairies with new babies only work the day shift."