You don't even have to be Catholic to appreciate this one.

Little Mary Margaret was not the best student in Catholic School .
Usually she slept through the class. One day her teacher, a Nun,
called on her while she was sleeping.
'Tell me Mary Margaret, who created the universe?
When Mary Margaret didn't stir, little Johnny who was her friend
sitting behind her, took his #2 pe ncil and jabbed her in the
rear.
'God Almighty!' shouted Mary Margaret.
The Nun said, 'Very good' and continued teaching her class.
A little later the Nun asked Mary Margaret, 'Who is our Lord and Savior?'
But Mary didn't stir from her slumber.
Once again, Johnny came to her rescue and stuck Mary Margaret in
the butt with his #2 pencil.
'Jesus Christ!!!' shouted Mary Margaret and the Nun once again said,
'Very good,' and Mary Margaret fell back asleep.
The Nun asked her a third question...'What did Eve say to Adam
after she had her twenty-third child?'
Again, Johnny came to the rescue.
This time Mary Margaret jumped up and shouted, 'If you stick
that damn thing in me one more time, I'll break it in half!'
The nun fainted

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Thanks for the laugh, I needed one after the past few days.