Shortbread shortcomings

Shortbread

He bought store-baked biscuits of the shortbread kind. They had chocolate chips in them. That was the first mistake.

Vowing that this shortbread would never be as good as what her mum baked, she said she was never going to eat those, and yet she did. That was the second mistake. 

“There’s something wrong with this shortbread,” she said, nibbling on another. ‘it has serious shortcomings” 

“What do  you mean?” he said.

 “That packet is empty”  That was the last mistake they both made.