That's the case. Many passengers are usually busy with nature's call so they don't observe the design of ICF AC Coaches Toilets. I have observed because I take some more time in the toilet to enjoy the speed n sounds of the rapping train, esp if it's a Superfast. I find one thing very funny which is the chaining of wash water mugs being chained to the toilet wall hook. This shows that in India, even such a mug is not safe within AC Coaches Toilets, even if the entire train is Fully AC ... HA Ha ha ... ;-)