C provides the infinitely-abusable GOTO statement, and labels to
branch to. Formally, the GOTO is never necessary, and in practice it
is almost always easy to write code without it.
-- Kernighan & Ritchie, The C Programming Language
COME FROM n.
A semi-mythical language construct dual to the
`go to' COME FROM <label> would cause the referenced label
to act as a sort of trapdoor, so that if the program ever reached
it control would quietly and automagically be transferred to
the statement following the COME FROM....
