I enter the chemist shop at the top of my road.
Me "Do you have any lens cleaner for glasses?"
Shop assistant "Lens cleaner? What for contact lenses?"
Me patiently "No for glasses"
Shop assistant waves at display of reading glasses "you want glasses?"
Me "No I want lens cleaner for glasses"
Shop assistant "I'll have to go upstairs, I don't know what you want"
She comes back "there's no one up stairs... sorry"
Yes, I think to myself, there's no one up stairs, the lights are on but no one is at home, the wheel is turning but the hamster is dead....