I hit myself with a telephone!

So, I was talking on the phone at work today and was getting really frustrated. Obviously I couldn't verbally express my frustration since I was on the phone. So I was pretending to hit myself in the head with the phone. However, I apparently didn't know my own strength and I hit myself HARD in the forehead. Lucky for me, my coworker was sitting right there to see it all! I'm not sure why, but she started laughing at me! : ) Unfortunately, I was still on the phone so I had to pretend as if nothing had happened!