Elevator don'ts

What does that funny little sign next to the elevator mean?  It was inconspicuous and normal to me, and I paid it no attention.
Until the woman in the elevator said to me, "I just don't know what that other thing beside the dog is.  A loofah?  Are we not supposed to bring loofahs on the elevator?"

"Oh, that means durian," I said to her.  "You can't bring durian into the hotel."

"What's durian?"

"The stinky fruit."

"What?  Stinky fruit? I haven't heard of that.  What does it smell like?"

"Uh...it's stinky and the smell carries a long way, so they don't want it in the hotel.  You'll have to look for it in the market.  Give it a try," I smiled.

She wasn't looking like she was feeling adventurous enough to try a fruit that is so stinky it's not allowed in hotel elevators.

I guess I don't blame her, though I know there are some durian connoisseurs out there.