After many years, a young Jewish Talmud student who had left the old country for America returns to visit the family.

"But--where is your beard?" asks his mother upon seeing him.

"Mama," he replies, "in America, nobody wears a beard."

"But at least you keep the Sabbath?"

"Mama, business is business. In America, everybody works on the Sabbath."

"But kosher food you still eat?"

"Mama, in America, it is very difficult to keep kosher."

The old lady ponders this information and then leans over and whispers in his ear, "Isaac, tell me--you?re still circumcised?"