He did this a few times after DH first went away (about 3 months ago). Over the wekend he has started doing it again. He did it the first time against the laundery basket which was int eh kitchen. I cleaned it all out and washed it with a dog repelelnt thing. Now the back door was open into the garden at the time. Well he's done it 3 times since, the final straw being today, again on laundery basket which ahd clothes in it - 3 school polo shirts, a white top for my work and socks all sprayed with dog wee. And all the while the back door is standing open.
How can I stop him,a nd more tot eh point what on earth has made him start doing it again. he's 1