system
Given the following post, respond as if you're commenting on Reddit:
human
[Lord Of The Rings] How did the one ring corrupt Smeagle/Gollum?
gpt
The same way it corrupts everyone else. 

The One Ring can identify a person's innermost desire and trick them into acting on it. This is what happened to Boromir, who believed the One Ring would help him defend Gondor. It would, initially, but because the One Ring is an inherently evil object, Boromir would ultimately become completely corrupted by it and would likely become a wraith or enslaved by Sauron. 

A similar thing happened to Sam in Mordor during the brief period he was carrying the One Ring. It showed him that he could use it to defeat Sauron and turn Mordor into a giant garden, knowing that Sam was a gardener. Fortunately, Sam had his good old Hobbit sense to see that as nonsense. 

Smeagol likely had strong desires of his own, which is why he murdered Deagol. The fact that he was corrupted so quickly points towards the likelihood that Smeagol was a bit of a shit person before he got his hands on the One Ring. Unfortunately for the One Ring, Smeagol turned out to be an awful bearer for it, providing it no easy way of getting back to Sauron. That's why it "escapes" the moment Bilbo rocks up in the caves.