I always pee around my enclosures (apologies for the crassness). I'm not entirely sure whether it works or not, but every little helps.
However, I'm of the opinion it *might* work to some extent, in that we have a fair few local foxes, none of which seem interested in my garden. Whether that be the pee, or the dogs (one of the foxes had quite a sore bottom a year or so ago after my Staffie tagged it for harassing our cat), or the wife even, I can't be sure. But they'll go on both my neighbours gardens. One of my neighbours used to feed them until I had a slightly passive aggressive word with her about it, and pointed out that they are vermin, despite being cute and fluffy, and don't need extra help from us.
Giving power to politicians is like giving whiskey and car keys to a teenage boy - P. J. O'Rourke (thanks Jessie)
It's amazing that people can believe everything is predestined but they still look both ways when crossing the road - Stephen Hawking
1 Wife, 3 children, 1 Staffie Bitch (RIP Marley), 1 Chi-Chi, 1 Tuxedo Cat, 1 part Maine Coon cat, male bearded dragon, Horsefield Tortoise, 2 White Silkies, 1 Frizzle Pekin, 1 CLB, 1 Appenzeller Spitzhauben Cockerel, 1 blue laced Wyandotte, 3 Appenzeller x Wynadotte pullets, 1 Call drake, 3 khaki Campbell ducks, 4 (2 male 2 female?) Aylesbury x Campbells, a breeding colony of Dubia cockroaches.
And a lot of Ibuprofen.