Today I found a can of liver pate in the pantry (kinda), expired in 2013. I was curious and opened it. No hiss... It looked fine, smelled fine, tasted fine, maybe a hint of metallic taste, but considering it's liver pate, and not even a good one, so maybe it wasn't even off.
I did give it a pass, I did not eat more, but I have to acknowledge, it held up well.
It wasn't in a particularly cool place, but a darkish one, no sunlight. Also kinda dry, but there was a bit of oxidization on the can outside.