It has been pointed out that you can explicitly continue to produce the output you expected.

Please note, however, that the behaviour of continue is very much different from the fall-through in C, in that the next when condition is still being checked; in C, you go to the contents of the next case without any checks (which would not make much sense in a switch/case anyway).

So the C behaviour (which is difficult to reproduce with the Perl given construct,see this thread) would not produce your expected output either.