Space Quest 3 Bug - Extra Points

Order the Monolith Fun Meal and then go to the booth closest to your ship.
Type "Eat"
You will see the following message:
"OWWW!!! Hey, what's this in my burger? Oh, it must be my Fun Meal prize! Hey, it's a swell decoder ring!"
Straight after this message, press the up key.
You will still have your Fun Meal and an extra 10 points.
Sit down, eat again and get more points.
Repeat until you have enough points or Roger can't take the food anymore. Whichever comes first.

[@JStryker47]

Hmm... does the Space Quest Historian know about this?

[@AgentLane13]

For gods sake, somebody tell Dan Avidan