A cup of Starbucks coffee matters.

2018/ 08/ 19
Walking among people, I found a woman coming toward me.  She was holding a cup of coffee, which I glimpsed.  In passing by me, she almost bumped into me because she lost balance a bit.  I found some coffee drops falling out of the cup.  I escaped from them.  I was safe.  She stopped but said nothing, holding the bup tight.  Our eyes met. 
I said, "Sorry!"   
She sipped the coffee while staring at me.  
I said,"Are you OK?"
She sipped again, and left.
I was wondering if she used a plastic straw then.