Can anyone tell me why cats always take a dump in somebody else garden ?

That ginger bugger next is always crapping in my flower pots would you believe .

I caught him yesterday and scared him off, but he was back again today hunkering down
as if he owned the place.

I mean what is it with these things ?

If I was all settled down for a crap and some nutter came shouting and hollering at me I'm
bloody sure I wouldn't dropping my hairy little ass there again in a hurry !!