“What did the hotel manager say to the elephant that couldn’t pay his bill?”/“Pack your trunk!”

An elephant riddle is:
   
Q: What did the hotel manager say to the elephant who couldn’t pay his bill?
A: “Pack your trunk and clear out!”
 
The pun is that “trunk” has two different meanings. The elephant joke has been cited in print since at least 1978.
 
       
Google Books
The Crack-a-Joke Book
Harmondsworth, UK: Penguin Books
1978
Pg. 12:
What did the hotel manager say to the elephant who couldn’t pay his bill ? Pack your trunk and clear out.
 
Google Groups: fido7.humor.filtered
4HF
Tony Leontyev
1/15/01
(...)
2. “What did the hotel manager say to the elephant who couldn’t pay his bill?” “Pack your trunk and clear out!”
     
Google Books
ROFL:
Rolling On the Floor Laughing Joke Book
New York, NY: Tangerine Press
2005
Pg. 122:
What did the hotel manager say to the elephant that couldn’t pay his bill?
“Pack your trunk and clear out.”
 
Twitter
Morten Stenbaek
@mobitwix
What did the hotel manager say to the elephant that couldn´t pay his bill ? “Pack your trunk and clear out !”
11:45 AM - 25 Dec 2009
   
YouTube
Ok, here is the joke. What did the hotel manager say to the el…
botcaster inc. bot
Published on Jan 22, 2016
What did the hotel manager say to the elephant that couldn’t pay his bill ? “Pack your trunk and clear out !”
 
Twitter
lorraine Jo King
@LahLahBean
#tuesdaytitters What did the hotel manager say to the elephant that couldn’t pay his bill? “Pack your trunk and clear out !” 😊
4:44 AM - 6 Mar 2018