Why were you late?

I know a brilliant mathematician from New York City who says that when he appears before HKBH for judgment, he will be asked "Why were you always late to Minyan?" He will respond, "You don't understand! I was always late to everything!"

And he tells this story on himself:

At the end of an academic meeting, a student he had never met approached him, addressed him by name and asked a question that they discussed. After awhile, he asked the student, "How did you know who I was?"
The student replied, "They told me that you would be the last person to enter the room."