Can durian fruit really be so bad, that they are banned from the Singapore Metro?

There isn’t even a fine associated with it.

Update: Turns out durian does not smell all that great.

Update 2: Cracking one open in your house isn’t such a great idea.

Update 3: I don’t care for durian.

Update 4: Neither of my dogs care for durian.

Update 5: My wife has forever banned durian from the house.

-Jon