Do you know anyone who complains a lot and just can't seem to enjoy life?

You know how it is...they only got 6 hours of sleep (waaaay more than ME) and they had to do a report, but they couldn't find their shoes, and then they ran out of gas and couldn't take the shortcut because there were too many trees and woe is me. I work with one and he makes me extremely tired. Do you know anyone like that?