This girl... I swear she has ADHD or something. She just can't stop talking or tapping her feet.

I gently tapped her on the shoulder and told her to stop. She nodded, but then kept talking and tapping her feet.

"Can you stop, please?" She nodded again. But then started to talk and tap her feet again.

I got fed up and yelled at her. "Can you stop?! It's annoying! God... Are you retarded or something?!" I sighed and muttered something under my breath as I continued with my work.