A group of professors were invited to fly on a new airplane. When the door closed and the plane was about to take off, the professors were informed that this plane was designed and built by their students.
All the professors screamed in terror and scrambled helter-skelter towards the door in a frantic bid to escape.
All except one professor, who remained seated, his expression serene.
"Why are you not escaping the plane?" he was asked.
The professor answered him with confidence, "They are our students."
"Are you that sure that you taught them well?"
"I'm sure it won't fly."
All the professors screamed in terror and scrambled helter-skelter towards the door in a frantic bid to escape.
All except one professor, who remained seated, his expression serene.
"Why are you not escaping the plane?" he was asked.
The professor answered him with confidence, "They are our students."
"Are you that sure that you taught them well?"
"I'm sure it won't fly."