Button laughed a bit before answering, drawing an amused look from Silver Screen.  "Well, she was on one of her 'Crusades' with Apple Bloom and Scootaloo.  They had decided to try to get their cutie marks in engineering, so they'd built themselves a catapult and were flinging anything they could get their hooves on with it.  Luckily for me, they had terrible aim."  Button shifted in his chair to a more relaxed position as he started gesturing with his hooves.  "Well, I was walking home from the library when a basket landed about two feet in front of me followed by a hail of apples all around me.  By the time I'd recovered from the shock, Sweetie and her friends were all around me trying to make sure I was O.K."