A little thing about the ring and its powers, especially invisibility: the ring could deny these powers at will by simply changing ring sizes.
When Isildur took the ring, he was later ambushed by orcs, as read in the book and seen in the movie. In the book, however, he dons the ring when the battle seems against him, and dives into the river to escape, using the invisibility of the ring to hide from the orcs view. The ring then slipped off his finger, revealing him to be killed by orc arrows, as it drifted down into the riverbed to be found by Smeagol many years later. So, the question you must consider is this: how do you determine when the ring will betray the wearer by just sliding off his finger?
Also, Sam wore the ring and was totally unaffected beyond the granted invisibility. What special powers did Sam posses that kept him from the corruption and power of the ring that seemed to grasp hold of Frodo as soon as he got the thing? He was, after all, right on Mordor's doorstoop when he donned it, thinking Frodo dead...
When Isildur took the ring, he was later ambushed by orcs, as read in the book and seen in the movie. In the book, however, he dons the ring when the battle seems against him, and dives into the river to escape, using the invisibility of the ring to hide from the orcs view. The ring then slipped off his finger, revealing him to be killed by orc arrows, as it drifted down into the riverbed to be found by Smeagol many years later. So, the question you must consider is this: how do you determine when the ring will betray the wearer by just sliding off his finger?
Also, Sam wore the ring and was totally unaffected beyond the granted invisibility. What special powers did Sam posses that kept him from the corruption and power of the ring that seemed to grasp hold of Frodo as soon as he got the thing? He was, after all, right on Mordor's doorstoop when he donned it, thinking Frodo dead...