Have you ever...

Have you ever sent an e-mail and instantly wished you could have it back? That is the way I felt this morning. I sent my sister-in-law an e-mail trying to explain a few of the many thoughts in my head that were weighing on my mind this morning because she asked me to. After I pressed send, I wanted it all back. I felt like I had openned myself up too far, had complained too much, and just been plain bitchy. She has so many other things to do than read a stupid e-mail from me. I felt then and still now feel raw inside. Would it be rude to call and ask her to delete it before she reads it?