--- AnyEvent-MP/MP.pm	2009/08/15 04:34:34	1.57
+++ AnyEvent-MP/MP.pm	2009/08/16 02:55:16	1.58
@@ -398,7 +398,7 @@
    my $port = shift;
    my ($noderef, $portid) = split /#/, $port, 2;
 
-   ($NODE{$noderef} || add_node $noderef) == $NODE{""}
+   $NODE{$noderef} == $NODE{""}
       or Carp::croak "$port: rcv can only be called on local ports, caught";
 
    while (@_) {
@@ -507,6 +507,9 @@
 port). After the monitoring action was invoked, further messages might get
 delivered again.
 
+Note that monitoring-actions are one-shot: once released, they are removed
+and will not trigger again.
+
 In the first form (callback), the callback is simply called with any
 number of C<@reason> elements (no @reason means that the port was deleted
 "normally"). Note also that I<< the callback B<must> never die >>, so use