Halloween comes with all sorts of rituals, and maybe even seances ... but Flesh-n-Bone is issuing a warning for trick-or-treaters to avoid Ouija boards at all costs!!!

TMZ Hip Hop caught the Bone Thugs-n-Harmony rapper out at LAX on All Hallows' Eve and he admits he's a firm believer in the spirit occult, and that's why he's telling everyone to be careful what you conjure ... because you just might get it!!!

Ouija boards became a bigger deal in the mainstream in the '90s, thanks in part to Bone featuring them in skits appearing on their first 2 albums ... "Creepin on ah Come Up" and "E. 1999 Eternal."

He now thinks God is pulling off his belt and spanking those who don't get the memo about messing with dark forces.

Flesh also tackled Bone Thugs' current and final tour run as a quintet.

We broke the story ... Bizzy Bone announced he was officially leaving the touring sector to Krayzie, Layzie, Wish and Flesh ... something we're now told the group had no say in before Bizzy went public.

Flesh says he was caught by surprise by Bizzy's revelation but says every member of Bone is accountable for his own actions at this phase of the group's career.

In any event, Flesh says he's proud of his new Halloween-themed "To The Bone (Remix)," where he features the next crop of Bone Thugs-speed spitters.

Unless Layzie Bone can prove a DNA test with 99.9999999% accuracy is wrong, he IS the father of another child ... TMZ has learned.

We broke the story ... the Bone Thugs-N-Harmony rapper -- real name Steven Howse -- was involved in a paternity case in Michigan with the baby's mother, Shateira Marketa Childress. She claimed he was the father of her child, Sevyn, and turns out ... she was right.

According to the test report ... DNA samples were collected from the trio in April, and Layzie's been determined to be the biological father with almost 100 percent certainty.

As we told you, the Michigan Department of Health and Human Services is looking to establish Layzie as the father in order to determine how much he'll have to fork over in child support.

The rapper was involved in another paternity suit in 2013 with a different woman, and he was found to be the father that time as well. Layzie -- who apparently ain't all that lazy -- also has 3 other kids with his wife of many years.

Memphis Grizzlies fans were PISSED when the Cleveland Cavaliers decided to sit their Big 3 earlier this week ... and Krayzie Bone doesn't blame 'em one bit.

LeBron James, Kyrie Irving and Kevin Love took the night off in the Cavs' 93-85 loss to the Grizz ... and the Bone Thugs-N-Harmony member is siding with the fans on this one, despite his love for The Land.

K.B. shares the reception he'd get if he tried to pull the same thing at one of his concerts ... and he's definitely got a point.

Bone Thugs N Harmony were amped at the prospect of getting a new member who's got the right last name for sure ... problem is, he's into something the group just can't handle.

We got the guys Friday night after they performed at Irvine Meadows Ampitheater ... and they knew all about debate star Ken Bone ... well, except for one thing, which is a deal breaker.

Bone Thugs-N-Harmony hit the westSIDE, and the westside hit back ... with a drone to the dome of one of the group's members.

BTH was performing in San Bernardino at the High Life Music Fest Sunday night when the flying object buzzed the stage. Watch, fans online think it was Flesh-n-Bone who took the hit.

It's unclear if the group or a fan launched it, but the drone went down. Flesh kept on rapping.

5:15 PM PT -- Wedding mixup ... Krayzie didn't marry his baby mama Andrea after all -- he tells us he actually tied the knot with a different Andrea (he's got a type). They don't want to reveal her last name, but he says they've been together for 3 years.

KB says they did it at a courthouse because they didn't want to wait, but they are planning to have a big ceremony next year.

As for the mixup -- Krazyzie's camp got their Andreas twisted.

Krayzie Bone was at a Crossroads ... and chose the path to married life.

The Bone Thugs-N-Harmony rapper finally got hitched to his long-time girlfriend Andrea on Wednesday in a private ceremony at an L.A. courthouse ... after 13 years of dating.

The couple has 3 kids -- Nathan, Malaysia and Anthony. Krayzie has 2 other daughters from his 1st marriage.

Back in July, Bone Thugs announced they'd be reuniting for one last album and a final world tour ... set to kickoff in December.

Bone Thugs-N-Harmony has huge plans for the next few years -- TMZ has learned they plan to reunite, record new music, make a FAT stack of cash ... and then ride off to the Crossroads never to be heard from again.

The guys from Bone Thugs tell us all five original members will kick off a world tour, then get back in the studio to record final album. They plan to auction off ONE single copy of the album ... asking price -- at least $1 MILLION!

If this blueprint sounds familiar that's because Wu-Tang Clan is doing the same thing -- currently touring after laying down their album. RZA claims they got a $5 million bid in the auction for their record.