Arguement

My mom believed that I went into my sisters room and stole her straightener. I told her I did not. We argued about this for a while and we went back and forth with different points. I told her that I was not in Taylor's room because I hadn't even been upstairs yet that day. She didn't believe me, she asked me who else would've taken it. I said I don't know but it for sure wasn't me. My sister then came downstairs and announced that she found her straightener and she had it all along.