There was a mine in a small town that completely collapsed. One of the engineers who miraculously survived the disaster went into the local watering hole. The bar was empty except for one lonely soul at the other end of the bar.

Hey bartender said the Engineer, Ill have a beer and pour another one for my friend down at the end there.

The bartender responded, Im sorry sir but that guys a commie and we dont serve his kind around here.

Well, youd better because if it werent for that guy, I wouldnt be here. You remember that mine that caved in, well I was in that mine and so was that guy. When the last of us were escaping, he held the roof of the mine up with his head! So get him a beer and if you dont believe me, look at the top of his head and youll see that its flat from holding the roof up.

The bartender skeptically served the commie his beer and then came back to talk to the Engineer: I saw the flat spot on his head but I also couldnt help noticing the bruising under his chin. What is that all about? the Engineer responded: Oh…thats where we put the jack.