Never had durian.
I would use that dried cuttlefish and those dry salted plums to keep me awake when I was on 16 hour watches on the submarine.
I can guess how that kept you awake: the cuttlefish smell would make you puke and the plums would give you diarrhea?
However, having to go to the toilet every 30 seconds probably would not satisfy most people's definition of "being on watch" unless being on watch included your entire GI tract from the mouth to anus staging the French Revolution in your gut!