In Need of Calculator
This woman should consider using a calculator when out and about. She really thinks that the waitress was shortchanging her, when in fact, the waitress was giving her twenty cents more than was due back to her. Imagine going on to your community online group to complain about a local waitress not giving you back the correct amount of change.
And also accusing them of racking up extra dough throughout the year with this practice. Then realizing that now everyone can see that not only was that an unfair attack on a local restaurant and worker, but you are also, very, very bad at math.