The two met up for an Animal Planet special which ran last night called "Michael Jackson and Bubbles: The Untold Story." It was the first time they'd seen each other since 2004 ... when MJ gave him up.
During the encounter, La Toya gets super emotional ... begging Bubbles to simply acknowledge her. There's crying, there's awkward moments ... but no dung was flung.
Still, you gotta see this video.