Yes or Lion ,will think there's a bigger cat in the area and move on. https://www.amazon.co.uk/Silentroar-Silent-Nitrogen-Based-Fertilizer/dp/B001DYLXGM/ref=sr_1_1?ie=UTF8&qid=1488152650&sr=8-1&keywords=silent roar cat repellent
I was looking for a fuel filter water sensor and came across this http://www.ebay.co.uk/itm/HOONT-Wat...514559?hash=item1a24adb8ff:g:0SoAAOSwA3dYEnZJ Might be fun...
i used this in the veggie garden . for my own cat ,,,,! but hes a german cat so had to use a double dose ....stubborn germans https://www.amazon.co.uk/GET-OFF-20...coding=UTF8&psc=1&refRID=YHPVVWHJX23NQKX0C18D
I just remembered that at work I have a tenant that is a little coffee shop. So i can get a few kg's of used coffee grounds. So ill try that too.
There is a plant called pee off. Coleus caninus or plectranthus caninus. It works for most cats. Not hardy so should start becoming available in April time.
Trouble is, in my garden, it's more likely to occur in the winter months when the grass is a bit longer.