The Ring is treacherous to anybody (save Sauron) that wears it or gets it: 1.) It corrupted Isildur so that he spared it. It then moved off his finger so that he'd be spotted by orcs. (Luckily for Middle Earth, the Ring appears to have fallen into the water, rather than stay in his possession and get taken by orcs.) 2.) Deagol finds it later, but is murdered by his cousin Smeagol. 3.) The Ring eventually ditches Smeagol, where it is found by Bilbo. 4.) The Ring tries and fails to get Bilbo caught by the goblins (it jumps off his finger when he is near the door). 5.) Bilbo very reluctantly gives up the Ring to Frodo. 6.) Frodo has many close calls with the Ring when the Nazgul are near (likely the scheme of the Ring to make Frodo give himself away) 7.) The Ring tries to tempt Sam when he gets it, but luckily Sam decides to destroy it rather than use it to be Lord Gardener of Middle Earth. 8.) The Ring corrupts Frodo, who claims it, thus revealing himself to Sauron, but then Smeagol shows up and inadvertantly destroys the Ring What I don't get is why the Ring, during the painful trek across Mordor, didn't try and jump off Frodo's finger and try and get found by either an orc, or Smeagol (who would have tried to get OUT of Mordor, and would have most likely been caught, as they were already looking for him too anyway). Heck, the Ring could have tried to ditch Frodo during the fight with Smeagol on the slopes of Mount Doom before the final confrontation.