Four of a kind

[Niwa]

Yesterday was a good day for a friend of mine.
I watched him play and in a few hours he had got 5 DIFFERENT FOUR OF A KIND.

I have started to call him the pope. Dont ask me why..

The question is: How unique is this? It was on the prima network btw.

[Niwa]

He's been playing 2 hours so far today.
2 more four of a kind.

[LetYouDown]

The odds of having 4 of a kind using both of your cards, I believe is:

48 C 3
------- = 0.00816%
50 C 5


Using only one of your cards (3 on board) I believe is:

47 C 2 * 2
----------- = 0.00102%
50 C 5

So decide for yourself how lucky he is. Anyone want to confirm/deny the math here? I'm tired.