
“Frank, don’t bother her!” Marie grew weary of her husband minding other people’s business while shopping. She didn’t have the heart to tell a stranger how idiotic she looked with a piece of green trash in her hair. Frank did.
“Um, excuse me …” He wanted to help her escape embarrassment.
“No, stop!” Marie’s face turned red at his meddling.
“That …” he pointed, “ probably shouldn’t be there.”
The woman plucked out the detritus and examined it. A chunk of yoga mat flaked onto her during class.
“Thanks,” she replied, popped it in her mouth, and trekked down the aisle.

Oh I love this unexpected twist!