I quickly followed her.

As I was just about to tap her on the shoulder she started running for a bus.

So I ran after her shouting, "You dropped your purse! You dropped your purse!"

She didn't hear me and proceeded to get onto the bus, so I got on the bus too.

As I walked to the back of the bus I breathlessly said, "You dropped your purse on the floor outside McDonald's."

"Thank you so much" she said, "Where is it?"

I said, "I've just told you, on the floor outside McDonald's."