Homework Helper!

The old verbiage of "The dog ate my homework," had an eerie similarity in our house this week when Aylah decided to do a little coloring ..... on Kailer's homework!!  She was busily coloring away at the table while I was making dinner.  Before she started, I had looked at the sheets of paper that she had and they were both blank, so I figured life was good.  Well, little did I know that somehow she got a hold of Kailer's homework for the week and took the liberty of scribbling pink across the entire thing!  Uh-oh!!  So when Kailer came in from playing I told him what had happened and his response, "Mom, why did you let her do that?!"  I laughed under my breath, because of course I had just LET her color all over his assignment.  I reassured him that it was okay and I would let Mrs. Suit know what had happened.  
That evening I sat down to compose my "Mommy Confession" (as I'm calling it) to Mrs. Suit.  Even though it was a complete accident, and I knew she would understand, I did feel somewhat like a dog with my tail between my legs admitting the mishap.  She was super sweet about the situation and I reassured her that future assignments would be put up out of the reach of little fingers.
  
So this begs to ask the question, is it legit to say, "My sister destroyed my homework?"