Looks like they are having a post coital snooze and are busy ignoring the world!
Copulating in front of the visitiors would definitely be discouraged. I imagine if any tigers were to try it, a peace-loving monk would quickly appear and give the tigers a big whack with a big stick.
However, I was surprised the monks have not succeeded in toilet training these cats. Everyone who's owned a cat knows that you can't allow it to poo whenever and wherever it likes. It's simply not hygienic.
I suspect the real reason for the apparent lethargy is that they are bored witless having to lie in the hot sun most of the day whilst a constant stream of nervous tourists prod and tickle them. They are just waiting for their turn to have a bit of fun, like these tigers are having in the background.
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