My favorite shark-jump moment was when someone in HR sent out a blast email announcing a new HR initiative for a "wear pajamas to work day" highlighting Google culture. When HR has to manufacture culture and call it a perk, things are on their way downhill...
A previous software company I worked for had its offices in what used to be nun's quarters. The rooms were small for living space, but very nice for an office, I hear. Apparently, the founder/CEO let the nuns come around once a year and talk to the employees about issues like their "salvation."