 Lupin's vendetta against the Tarantula Gang in "In Memory of the Walther P-38" was partly settling of past betrayal and mostly vengeful payback for their shooting and nearly killing Zenigata.It seems Lupin loves to steal more than actually having the treasure he sought.Lupin relishes more in the challenge of stealing and, as long as he succeeds in the heist, is usually not that upset when he ends up empty-handed; there have been times he has lost the object or intentionally thrown it away.