Er... this seems to contradict what perldoc -f push has to say on the subject...

push ARRAY,LIST

Treats ARRAY as a stack, and pushes the values of LIST
onto the end of ARRAY.  The length of ARRAY increases by 
the length of LIST.  Has the same effect as

    for $value (LIST) {
        $ARRAY[++$#ARRAY] = $value;
    }

but is more efficient.  Returns the new number of elements 
in the array.
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and the boring jobs bearable" - me