Apparently all of Google's developers suck:

Despite attempts at education, our developers regularly write loops that retry indefinitely when a file is not present, or poll a file by opening it and closing it repeatedly when one might expect they would open the file just once.

Developers rarely consider availability. We find that our developers rarely think about failure probabilities.

Developers also fail to appreciate the difference between a service being up, and that service being available to their applications.

Unfortunately, many developers chose to crash their applications on receiving [a failover] event, thus decreasing the availability of their systems substantially.

A word of advice... Just make your hiring practices more rigid. Google is apparently at 10 interviews now. Just make it 20 …