Probability of getting the same pocket pair 4 times in a row?

[Schwinn]

I played in a NL holdem sit&go tourney yesturday and during the middle of the game, I was dealt 66 four times in a row. I am curious of what the probabilitiy is of this happening? 3 out of the 4 I hit the set "666". I think the poker devil is after me.

My next hand was 77. What would the probability be of getting any pocket pair dealt 5 hands in a row.

Thanks for your help.