Can the amount of Nerf wars that occur in an office be an indication of the health of a company (or at least of employee moral)?

The more Nerf wars that employees have is an indication they are happier. Why? It is a sign that people are being outgoing and embracing each other.

As Nerf wars become less frequent or stop all together, it is a sign that people are retreating into their shells and that collaboration has stopped. The health of the company is trending downward.

Of course, not every company is going to have Nerf wars, but replace Nerf wars with any generally outgoing activity a company might regularly and spontaneously engage in and the indicator should still hold.