Name Game

There is this one parent at my center who never ever remembers my name, even though it's clearly posted next to my desk. For a few days it was Sylvia, then Cassandra, and now it's Katherine. I thought it was just me, but a coworker (whose name is Kate) said that this same parent has called her Jessica and now is calling her Jennifer. The funny thing is that neither one of us will ever correct her.