It's pretty standard in my area for merchants to have 'masks required' signs at the entrance to their store. Today, in one market with such a sign, I noticed several people, including an employee, wearing masks that were not covering their nose.

While I don't wish any violent confrontation, if it were my store, I'd not serve these customers, and I'd address the employee.

Having thought about this on the way home, I sent a letter to our local paper expressing my gratitude for merchants who require masks, and my disappointment when they don't require those masks to be properly worn.