Do speaker cables need a burn in period?

ma prima avea ciascun la lingua stretta coi denti, verso lor duca, per cenno; ed elli avea del cul fatto trombetta.

Translation: I come from the land of bs.

Yes, a farting demon as it were, thus the analogy. 

Lets follow a moral compass and  try to respect your fellow audiogoners. Let's get back to the OP. I believe in Burn in. Tubes certainly burn in don't they. I have experienced that for sure. Wire or metal is the same.

The compass points at Kitty. 🐈💩

He is a habitual offender, and can expect to get as good as he gets. 

How is that for a bearing to the station, for a non-precision approach. 🐍💩🙀

"I believe in Burn in..…...Wire or metal is the same."

Come to think of it, how many of us have seen a metal burning (in, out, in the middle, wherever)?

I think that may point towards the answer.

If your cable does burn, you need to switch to some fuse thread for suggestions.