Mike "Sugar Bear" Thompson is out of control and out of line!
The reality star was practically going to fight the child he helped raise, Lauryn "Pumpkin" Shannon, during the reunion episode of Mama June: From Not To Hot. WTF!!!
ET obtained exclusive footage of Sugar Bear explosively walking off set and accosting Pumpkin, as a security guard held her back. All the while they're shouting back and forth at each other, with Mama June Shannon entering the fray and telling her ex, "You touch her, I swear to God, I will fucking kill you!"
Sugar Bear then actually RIPS HIS SHIRT after Pumpkin calls him "a piece of shit father."
Thankfully, Alana "Honey Boo Boo" Thompson was safely in another room and not privy to the crazy goings-on.
Watch the insanity (below)!