If you run bitcoind getrawtransaction abcd1234... 1 you get a fairly complex JSON object with all the information about the given transaction.  My question concerns the "addresses" field deep inside each "vout": if I understand regular Bitcoin transactions correctly, this array should usually contain only one address; on what circumstances would it contain more than one address?  Also, could someone point me towards one transaction (either mainchain or testchain) where more than one address is used?