I'm going to catch you

I swear I am going to beat the crap out of my friend. We were at the gym this morning. She was on the cycle and I was on the tread mill. I can hear her behind me say "I'm going to catch up to you...you can't run away from me. Can I get some fries with that shake?"

It's tough to run and laugh at the same time. I gave her the finger and kept on with my workout. The guy next to me just shook his head and smiled.