A true friend simply walks into Mordor with you.
When he followed Frodo farther than he'd ever travelled before.
"If I take one more step. It'll be the farthest away from home I've ever been."
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When he threatened Stryder not to harm Frodo.
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When he was prepared to take on five Nazgûl to protect Frodo.
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When he tried to follow Frodo across the river, even though he can't swim!
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10 Times Samwise Gamgee Was The Greatest BFF A Guy Could Ask For