Smokestack Lightning

Wolf said the song was inspired by watching trains in the night: "We used to sit out in the country and see the trains go by, watch the sparks come out of the smokestack. That was smokestack lightning."

wikipedia

In the early to mid 1960s, it became a live staple of British beat groups, including The Yardbirds, Manfred Mann, The Animals,The Groundhogs and The Who as well as American groups, such as Grateful Dead, Quicksilver Messenger Service, The Electric Prunes, and The Wailers. The song has also been performed and/or recorded by Muddy Waters, Jimmy Rogers, Fenton Robinson, Lucky Peterson, John Lee Hooker, John Mayer, Bob Dylan, Soundgarden, Widespread Panic, Gov't Mule, Lester Butler, George Thorogood, Aerosmith, and Big Head Todd and the Monsters.

Hubert Sumlin & David Johansen - Killing Floor

Wikipedia

"Killing Floor" is a song by American blues singer-songwriter and guitarist Howlin' Wolf, featured on his 1966 album The Real Folk Blues. One of Wolf's best-known songs, "Killing Floor" has been covered by a wide variety of artists – including such high-profile acts as The Jimi Hendrix Experience, Eric Clapton and Led Zeppelin – and is frequently noticed as one of the most influential blues songs of all-time.
The Wolf's long time guitarist, Hubert Sumlin still performs this song. He played it with Eric Clapton, Jimmie Vaughan and Robert Cray at The Crossroads Guitar Festival.

The song's title references the slaughtering area of a slaughterhouse. The name also features as the title of an action-adventure novel by Lee Child (Killing Floor); the connection is likely to have arisen from the main character Jack Reacher's search for blues guitarist Blind Blake and the apparent link in musical genres.

I shoulda quit you, long time ago.
I shoulda quit you, baby, long time ago.
I shoulda quit you, and went on to Mexico.
If I hada followed, my first mind.
If I hada followed, my first mind.
I'da been gone, since my second time.
I shoulda went on, when my friend come from Mexico at me.
I shoulda went on, when my friend come from Mexico at me.
I was foolin with ya baby, I let ya put me on the killin floor.
Lord knows, I shoulda been gone.
Lord knows, I shoulda been gone.
And I wouldn't've been here, down on the killin floor.