The scenario

Hannah Lund comes into the pharmacy with her young son and daughter.

"I’ll get some paracetamol liquid please," she says to technician Vicky. "And some calamine. Is that still the best thing for chickenpox?"

"It depends, really," replies Vicky. "Who is it for?"

"Well, it’ll be for Eddie, he’s six now, and Izzy who will be four next week. We’re going to a chickenpox party, aren’t we?" says Hannah, turning to her children.

Vicky looks up questioningly as Hannah beckons her closer.

"I’m trying to get it out of the way for all three of us as none of us have had it," murmers Hannah. "I’m three months’ pregnant, so I’d rather deal with it now than in a few months with a newborn."

"I’m not sure that’s a good idea," Vicky whispers back.