“Why couldn’t the sesame seed leave the casino?”/“Because he was on a roll.”

A popular children’s joke is:
 
Q: Why couldn’t the sesame seed leave the casino?
A: Because he was on a roll.
 
The popular pun has been cited in print since at least 2004.
 
     
AnandTech
Amorphus
05-09-2004, 11:40 AM
Why couldn’t the sesame seed leave the casino?
Because he was on a roll.
 
Poker Moments
A Little Poker Humor
Posted on October 12, 2006 by sparky
Well, we’ve had some serious blog entries lately… misogyny, the end of online gambling, etc.  So how about a something a little more lighthearted???
Why couldn’t the sesame seed leave the casino?
…..
…..
…..
A: He was on a roll.
 
Twitter
Hollywood P.
‏@RotatinMy_Tires
@ddlovato why couldn’t the seed leave the casino? bcuz he was on a roll lol
9:41 PM - 26 May 2009
 
Twitter
Colette
‏@littlelottee20
@DalepakFoods Why didn’t the sesame seed leave the casino?  Because he was on a roll! #badfoodjokes
12:48 PM - 6 Oct 2012
   
Google Books
From Scratch
By Rachel Goodman
New York, NY: Pocket Star Books
2015
Pg. ?:
“Why did the sesame seed refuse to leave the casino?”
 
He taps his chin. “I give up.”
 
“Because he was on a roll.”
 
Google Books
21st Century Tank Girl
By Alan Martin
London: TItan COmics
2015
Pg. ?:
Why didn’t the sesame seed leave the casino?
Because it was on a roll.
   
Twitter
Yelp Oklahoma City
‏@YelpOKC
Why couldn’t the sesame seed leave the casino? Because he was on a roll. #TellAJokeDay
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2:18 PM - 16 Aug 2015
 
KEY103
10 of the corniest food jokes
Posted on Tuesday 8 September 2015
(...)
2. Why couldn’t the sesame seed leave the casino?
Because he was on a roll.
 
Twitter
Wednesday DinnerClub
‏@WedsDinnerClub
Q: Why couldn’t the sesame seed leave the casino?
A: They were on a roll 😂😂... 😕
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2:56 PM - 22 Sep 2015