in reply to Resuming from a SIG{INT}

Your code does not take "3 carriage returns".

A single CR after CTRL-C DOES quit the program with the correct message (as coded) "Got to the end of the programme".

Offense, like beauty, is in the eye of the beholder, and a fantasy.
By guaranteeing freedom of expression, the First Amendment also guarntees offense.

In Section Seekers of Perl Wisdom