I mean, really. This can't happen. The cigar industry is going to object because now they can't gouge on real or fake Cuban cigars!

Another instance...

There was one extremely useful side benefit of punch cards: Chad. The chad was wonderful stuff. As a prank (won't say who did it) a container of chad was poured into a car's defroster vent. First cold day: Instant snow globe. And it was the gift that kept on giving as a few chad would came out for years later. Oh the memories....

And yes. The endless loop was intentional. Therefore is that not bad programming. Just programming to meet the original project requirements.

10 PRINT "Happy Birthday, Basic"
20 GOTO 10