A message seen on opening a Nethack game during the days surrounding the full moon. During this time, the character's base luck is set to 1, werecreatures are more likely to be in their wereforms, and chatting with a dog will always yield "(The dog) howls." One can manipulate the CPU clock to get the luck benefit, if you're one of those Hackers who will do anything short of savescumming to ascend.