Shifting Etiquette

The Erratic Genius and I are in a line-up waiting for our turn to order gelato.

Ahead of us is a dad and his two little girls. They are excited about the gelato flavours and are discussing the choices. Before they can decide on a flavour, the dad's cell phone rings and he answers it.

"Hello! Yes... How are you?" He responds into his phone. His girls become silent as he continues his conversation.

The Erratic Genius and I are chatting, joking and laughing together. A happy mother and son moment as we wait for our turn to order.

Suddenly, Cell Phone Dad turns to look at us and glares.

I lower my voice as I realize that our conversation is disrupting his phone call.