Japanese felines have become immune to plastic cat-deterring spikes.

The invention is used anywhere you wouldn't want the fur balls to step on - in the front yard, on top of the air conditioning units, along the tops of fences, etc. Also, the cat deterring spikes can be found indoors, protecting certain furniture or deterring the kitties from grabbing food off the table.

For years now, one could buy those cat-deterrent spikes at any 100-yen shop .
 However, the golden days of the thingie are over, as recent pictures on the internet show the Japan supercats couldn't care less about the spikes.