Two Medical Students

Two  medical students were walking along the street when they saw  an old man walking with his legs spread apart. He was  stiff-legged and walking  slowly.

One student said to his friend:  "I'm sure that poor old man has Peltry Syndrome. Those people  walk just like that."

The other student says: "No, I don't  think so. The old man surely has Zovitzki Syndrome.. He  walks slowly and his legs are apart, just as we learned in  class."

Since they couldn't agree they decided  to ask the old man. They approached him and one of the  students said to him, "We're medical students and couldn't  help but notice the way you walk, but we couldn't agree on the  syndrome you might have.  Could you tell us what it  is?"

The old man said, "I'll tell you, but  first you tell me what you two fine medical students  think."

The first student said, "I think it's  Peltry  Syndrome."
The  old man said, "You thought - but you are  wrong."
The  other student said, "I think you have Zovitzki  Syndrome."
The  old man said, "You thought - but you are  wrong."
So  they asked him, "Well, old timer, what do you  have?"

The old man said, "I thought it was GAS  - but I was wrong,  too!"