Make it stop.

Dear PAB,

Thanks for letting your spawn wreck havoc on our OOD. I love that you let your child who is beyond toddler age come in the office and use it as its jungle gym. Gymnastics, baseball, and general playing around are de jour for us when the pab-child is present. And the icing on the cake, letting said spawn ring the little bell repeated over and over and over. You know those reception bells you have at the front of the office? That's the kind of bell I'm talking about here. It only took 20 rings for you to ask your spawn to stop. Really? Just 20.