Five-year-olds, and parents of five-year-olds, you're on notice: When Julie Lawrence invites you to a birthday party and asks you to please RSVP, you best do so.
Otherwise, you might end up with an invoice demanding compensation.
Just ask Alex Nash, 5, who decided to skip the bash for Julie's son.
Lawrence, who planned the birthday party just before Christmas at a local ski slope, was none too pleased that Alex bailed, and without even saying anything.
Therefore, she submitted a $24 invoice to the boy's dad, Derek Nash, and listed a "no-show fee" in the document, which Derek found in his son’s backpack.
The elder Nash was far from pleased, claiming he lacked the contact information to tell Lawrence that Alex was double-booked and could not make it.
That explanation didn't fly, though, and he claims Lawrence is digging in, even threatening to take them to small claims court for their failure to pay.
"I can understand that she’s upset about losing money," he says.
"The money isn’t the issue, it’s the way she went about trying to get it from me. [She submitted] a proper invoice with full official details and even her bank details."
"She didn't treat me like a human being, she treated me like a child and that I should do what she says," Derek Nash tells the BBC, and he's not about to.
Lawrence, for her part, is standing by her decision to charge him.
She said in a statement (obviously) that her contact info was clearly noted on the party invitation, and that "they had every detail to contact me."
Still ... perhaps she is taking this whole thing just a tad seriously.
You tell us: Should she just make like Elsa and let it slide? Or should she make an example of the Nashes? Hit the comments to share your thoughts.
Then check through other questionable parenting moves below: