This is genuinely appalling. Vets aren't automatically key workers, and they could come up with a rota for emergency care only.
As a teacher, I'm not going into school to help companies continue to make profit. I'm going in to provide care for the children of people who are absolutely essential to society right now AND have nowhere else to go.
The more people who abuse the system, the more likely it is that schools will end up unable to open due to lack of staff (as they will be more likely to need to self isolate) and worst of all more likely that someone will get seriously ill and die.
Also Pets At Home are asking their staff to put themselves and their children at increased risk of infection.
If they were acting responsibly, they'd shut store's, go to online only, and have a skeleton staff come in to care for animals, or temporarily get staff to care for the animals at home.
This is yet another reason why the sale of live animals in shops should be banned IMO.