You're not fooling anyone

I was in a public restroom doing what you do in restrooms when someone comes in and goes in to the stall next to me. I can hear her talking on her cell phone and I'm marveling at this behavior. I've seen it before but it just seems weird to me that you can't wait 2 minutes either to make your call or to pee. I finish, flush, and leave the stall. As I was my hands I hear her saying " No, no I'm not. That wasn't me" and I realize the person she's speaking to heard me flush and now the bathroom talker is trying to deny that she's talking from the bathroom. Makes me want to go back in the stall and flush repeatedly.