We had an issue with cats for a while
We found that white pepper powder was the best deterrent
Then we found an better deterrent
We bought a cat!
Suddenly other cats were not quite as interested in our garden once our new deterrent started telling them to meow-off!
After considering catching all the cats that used to come and crap in our garden and then taking them to the local cat rehoming charity claiming they were strays, we settled on four of these based on the high number of positive reviews:
STV610 MEGA SONIC REPELLER - AMAZON
We no longer have cats in our garden but you do need to make sure the batteries haven't run out as they moment they do the cats return to pumping the brown stuff in to your flower beds. Gone up in price by the looks of it as we paid £14.99 each a few months back.
I have 2 (Old) cats and 2 (Young) Patterdale Terriers. It's fun to watch neighboring cats entering the garden thinking they can better our elderly cats only to find 2 Terriers bearing down on them at a rapid rate :-)
It's like watching a Tom and Jerry rip off! :-)
I like cats but that vid made my day!
LOL I love cats too but I've got no problems spraying my own or others' cats with harmless water to deter them (although mine will take several squirtings before he decides enough is enough) and that video is genius. Love it.
On the subject of cats this made me smile today:
Try spraying the affected areas with Citronella Oil from a hand or garden sprayer, its cheap enough, used in those garden lanterns to repel bugs etc.
I spray my deck and it deters both Cats and Foxes re-apply every couple of weeks April to August. The cubs have just begun to emerge and they are real trouble.
Not sure if its the smell or that once its on the fur they hate it...
A cat hater would tell you to feed them starfish. Cats love starfish. It also poisons them.
Starfish does kill cats. I wasn't advocating it!