Auschwitz victim!

Two Irishmen are sitting in a bar.

Mick's looking particularly sad and Patrick asks him "What's the matter Mick?".

Mick says, "Well, I knew that my grandfather had died in the war, but I've just found out that he actually died in the Auschwitz concentration camp."

Patrick says, "That's terrible, did he go to the gas chamber?"

Mick replies, "No, he fell out of the machine gun tower."