noting that just because an employer doesn't have a job for you that day, doesn't mean they won't in the future, so that negativity that just occurred could have just killed the one chance at a good job that you had. In summary, just because things look bad, doesn't give you a reason to be negative, your negativity could make things worse off.
"Practice makes improvement NOT perfection. There is always room to improve yourself, protection does not exist." - Les Brown
Source: Les Brown (Video)