Actually, if you've ever done much module/OO programming, you've probably used goto quite a lot, particularly if you write AUTOLOAD functions. From perltoot:

  When Perl tries to call an undefined function in a
  particular package and that function is not defined,
  it looks for a function in that same package called
  AUTOLOAD. If one exists, it's called with the same
  arguments as the original function would have had.
  The fully-qualified name of the function is stored
  in that package's global variable $AUTOLOAD. Once
  called, the function can do anything it would like,
  including defining a new function by the right name,
  and then doing a really fancy kind of goto right
  to it, erasing itself from the call stack.
[download]

As such goto is used in quite a few modules, core or otherwise. CGI.pm, for example.

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