Teacher asks the student:
"What is your aim in life?"
"To become a psychiatrist", the student replies.
"Very good", the teacher says, "Now would you please spell the word psychiatrist."
After some hesitation the student replies: "Well, I mean I want to be a doctor, sir. D-O-C-T-O-R."
A dog"s sense of smell is one of the keenest in nature. If a pot of stew was cooking on a stove, a human would smell the stew, while the dog could smell the beef, carrots, peas, potatoes, spices, and all the other individual ingredients in the stew.