its old lah everyone knows this since the brits lay tracks in
malaya. KTM didn't put those signs up for nothing. think!
isn't that a wonderful idea, keep it simple, no maintenance, no
clogged piping, no harmful chemicals, biodegradable, just plop to
the tracks. and no one is supposed to walk on the tracks anyway.
just don't drop your keys/wallet while doing business.
and if you want it any other way, you better get the roaming cows
and goats to wear diapers.