Actually, she didn’t order a plain bagel. She ordered a multigrain bagel, and the waiter/waitress asked if she wanted butter or cheese, or neither.
That’s when she yelled:
“I want my multigrain bagel!” Rosenthal said.
She admits that this wasn’t the first time she has done something like this, and a witness claimed she called the server an a—hole.
She wasn’t defending proper English, and she wasn’t standing up for her rights. She was being an immature piece of work.
I went back and reread the article and I see you are right—it didn’t say she ordered a plain bagel.
I don’t know that she acted immaturely. More likely, she couldn’t handle the pressure and cracked up. Happens to a lot of us old folks. Usually people don’t call the police, they just remember some crazy aunt they have in the family and move on.