"Another joke from Poland" joke

The line in front of the Butcher shop in Warsaw is long,
indeed, and the people grow weary, ever more weary, of the wait.
Eventually an official comes out and announces "We are very low
on meat; all Jews must leave the line." So the Jews in the line
quit the queue and head for home, empty-handed.
After some more of a wait the same official reappears
and announces, "We are even lower on meat that we thought. All
non-party members must leave the line." So all the non-card-carrying
members standing in line begin heading for home, equally empty-handed.
After some more time the official appears to declare "All
Serbs and Croats must leave the line; we haven't enough meat for
you." Disappointed, they leave the line and wander off.
Well, you guessed it: a bit later the same official appears
and informs the remaining people "Unfortunately we have run out of
meat entirely - you may as well all go home," and disappears back
into the store.
"Isn't that just the way it always is," mutters one old man
as he departs. "Those damn Jews get all the breaks!"