Dutch Master Moggy in charge. Do not touch.

Dear George
I own a store on a very busy street in Amsterdam. I’m my own store Master Mouser.
I watch out for rodents and other small creatures that might sneak in off the street to steal! (photo on left). But people, especially tourists can be very distracting; they think I’m part of the decor and that seems to be so cool for them.! Some even try to take pictures of me and some try to pet me. How do I tell them that I’m not here for their amusement or entertainment? How do I tell them I’m serious business and they better buy things from me instead of petting me! I’m not looking to get cozy with anybody! Just purely business! Buy a Van Gogh! Buy a windmill! Buy Dutch chocolate! Buy something!
Annoyed by tourists
The Dutch Moggy

Dear Dutch Master,
Fending off human harassment is one of the most severe irritations for working cats. Humans cannot accept the idea that we are on duty: we do not wish to be interrupted: and, most of all, we don't want complete human strangers to walk up and without even a by-your-leave try to cuddle us. 
It's bad enough in daily life when we are just mooching around patrolling territory. They pounce on us and try to pick us up. But if we are shop cats, brewery cats or garden centre cats, they seem unable to understand that we are busy with our jobs. And worse still, if we are in retail we have to pretend to be nice.
How would they like it? When we sleep on the keyboard or just walk across it, they get very upset. No empathy for us. That's what it is.
Yours in sympathy,
George.