DH and I were planning on going to EPCOT on Monday too! We should do a designated meet-up: Operation Panda Cookie.
RE: Candle. I basically agree with everyone's thought.
Jackson (most likely) took it off a table - but not the hall one (?). It was lit, or perhaps freshly extinguished as it had to still be in liquid form (and there had to be a lot of liquid), started walking with it, dripping it in blobs, Jenn noticed, grabbed it from him, there was a tad bit of a struggle (NOoOoOOo, Mommy
bleep!) hence the wax on Jenn's arm and the wall at a high level as it splashed about (more akin to someone of Jackson's size not letting go as Jenn tried to grab it away from him), and then she put it down on the floor after the situation ended.
Cuz a candle doesn't engage in wall parkour without breaking just because it was "dropped."
ETA: Based on how much wax there was over various things, I'd say that Jackson was tossing hot wax for awhile before Jenn realized what he was doing. Cuz, like
@xmasbdaygirl said, it had to be burning for a long time to get that much wax...and the blobs weren't just in an isolated place.