The pressure of a workday can bring out the weirdness in people. Possibilities for stupidity are endless. Just check out these chats from overheardintheoffice.com:

Boss: You make too many mistakes! You're not very consistent.
Worker: Well, you can't be consistent all the time.

Office Manager: Where were you yesterday?
Worker: I was at my cousin's funeral.
Office Manger: Why? Did she die?