…There’s a bin of used tissues next to the toilet.
I forgot that some countries have workable plumbing so that the toilet paper can actually be flushed down the toilet! This is rare in Thailand (and Laos, Vietnam, Cambodia) where you need to use the toilet paper and then put it into the bin so not to clog up the toilet.

I was surprised when I got to Changi Airport in Singapore and found NO WASTEBIN WITH ACTUAL HUMAN WASTE in it! Amazing!*
However Singapore has something that’s more annoying/scary in their bathrooms. Automatic flushing toilets!! Pretty much every public toilet in Singapore is automatic and I’ve been flushed out prior to finishing my business countless times. And it never, ever, fails to scare me mid-stream!
* In these countries’ defence, the bins are usually not too gross. The locals usually use the bum spray to clean themselves and then some toilet paper to dry up. It’s the foreigners who don’t know or want to know how to use the bum spray. So then they use toilet paper to clean up (as per normal) but then they freak out about the signs asking you to put your used paper in the bin, so then they put their shitty toilet paper in the bin, and that’s when it’s super gross.