Birthday Party

I was telling Superman the letters to write in a birthday card for one of his friends:"H-A-P-P-Y"
Superman:"I don't know" and starts walking away.
Me:"get back here and finish, please...B-I-T-H-R-D-A-Y"
SM:"I don't know"
Me:"Oh" then finally understood why he kept walking away-- he doesn't know "y" as in "why?".
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Mimi and I went for a walk yesterday. She walked up to a strange cat.
Me:"Keep walking, please"
Mimi:"Keep walking, Catty cat"
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A day all Gibbys wore stripes.