Stress Test

Stress Test (worksafe)
I am not sure exactly how it works, but this is amazingly accurate. Read
the full description before looking at the picture.

The picture below has 2 identical dolphins in it. It was used in a case
study on stress levels at St. Mary's Hospital. Look at both dolphins
jumping out of the water. The dolphins are identical. A closely
monitored, scientific study revealed that, in spite of the fact that the
dolphins are identical, a person under stress would find differences in
the two dolphins. The more differences a person finds between the
dolphins, the more stress that person is experiencing. Look at the
photograph, and if you find more than one or two differences, you may
want to go on holiday.