I scent mark my home - for reassurance and home-making.

The video shows Shirty Bertie making his rescue pen into a home by rubbing against it. 

A home has to smell right. My core territory has to smell of me (and my scent glands), my human and any other friendly beings that I live with. So I spend time rubbing my chin against the furniture to spread my scent.

My chin also smells of my human, since I have rubbed it against her when I am feeling friendly. Then I pick up the scent of the furniture, itself, and rub her again. It's a careful mix.

This is feline home-making. I need my home, my core territory, to smell safe and happy. So if I feel just a little insecure, or if I have come back from the cattery, I will remake the scent profile.

What I hate is when the home scent is destroyed by painting, or builders, or some kind of alien scent brought home by my human. When Celia came back from hospital, I had to re-rub her and the home, because she brought back medical smells, like the smells of a vet.

• He was called Shirty Bertie because he occasionally nipped his rescuer.

Humans and a safe haven

 Why do humans insist on leaving their territory. They call it a "holiday" or a "vacation." They move out of their proper place and roam far afield - for no very good reason.

No sensible cat would do this. We cats live in our own habitual areas - a core territory with a safe den and then a hunting range. 

The hunting ranges is where we go about, even if we don't hunt. We patrol it. We make sure nothing has changed and, if it has, we sniff carefully and sometimes mark it with urine as a kind of post-it note to ourselves to double check and as a message to other cats if  they share our range.

If we are indoor-only cats, then this distinction between the core territory and the hunting range is not so clear. Even so we appreciate a safe haven area, like the core den, where we can retreat if there are upsets or changes within the house.

My core territory is on the bed of my human. That's where I go if there are strangers in the house. I feel safe there. And, if things go really bad like shouting or building work in the house, I can always go under the bed, itself. 

My friend Percy has his safe haven on the top shelf of the wardrobe! He feels safe high up.

Why don't humans have the same sense? They go hunting for food or for work outside the home, but why go away for a whole two weeks roaming far afield?

Humans really are a strange species.

Builders in my territory....hiss

Don't you hate them.... strange men carrying a hold-all full of tools. Smelling of wood, plaster, metal, and sometimes of the yappy dog that is in their van.

They invade our home, bringing in their horrible scent to ruin the reassuring family scent. They are noisy -  drilling, thumping, banging, and hammering. And, if we're unlucky, they bring a radio with loud rock music.

In the evening when they have gone and we inspect our home territory, we find there is CHANGE.

I hate change. I want my safe family territory to stay the same, just as I want my daily routine to be unaltered.

Builders ruin that. So I hiss at them. I might even need to pee on their toolbox. 

Builders! You have been warned.