Lets see, my 2 worst other than the hubby's meltdowns...
Our youngest son has been this crazy dinosaur & reptile lover. He knew all about dinosaurs when he was a squirt. Soooo, I took him into Ellen's Energy Adventure/Universe of Energy on one of our first trips thinking he would enjoy seeing the dinosaurs. I guess he was maybe 6? We sat thru the pre-show then proceeded into the ride portion. Juuuust as the ride vehicle doors shut he says, "I have to go pee." Crap. We just went before coming into this attraction. Kinda stuck now. So we were sitting in the front row against the right side of the vehicle. As we rounded a corner there was some bushes rustling nearby with growling and the story was that raptors were stalking us. Remember, the kid knoooows what a velociraptor was. His face was sheer terror. His eyes were wide open. He never said a word. He slowly but deliberately laid his head down on my lap. Um, okay? I thought he'd enjoy the dinosaurs but impromptu naps were okay, too. So we're walking off the ride and he's happy as a lark (that it was over?). I asked did he still need to potty and he smiles..."Nope. I already went." What?!?! I ran him straight to the restroom, checked, and sure 'nuff. He went just a teensy bit, enough to wet his drawers but not his jeans. We took the drawers off, threw 'em away, and the kid went commando for a few hours. I asked why he didn't hold it because accidents were never really a problem after potty training at the normal age for that. We were a couple years beyond that. He said, "The raptors, Mom. They were too close." Poor kid! Never heard of anyone wetting themselves from fear on UoE! LOL!
Also, same kid, first trip when he was 6... You know how freakin' hard the ice cream bars from the carts are. They're hard-frozen! So we stop for an ice cream right there by BTMRR & Splash. The kid takes 1 bite and starts screeching like death is upon him. The bloody gums & absence of a tooth told us what was up. Just when we got him to quiet down he spotted the blood on the napkins we were dabbing his mouth with then he really went bananas. Screeching, screaming, trying to get away from us. Think cat-on-a-leash. We're teamed-up hanging onto him and trying to stop the bleeding. He's choking, hysterical, croaking, randomly getting out the words "NOOOOOOO" and "STOOOOOP". That's when I realized the crowd of people around looking at us like "What are you doing to that poor little boy???" Oh geez. I wanted to just walk away. Eventually he chilled out. I'm sure it wasn't more than 2 minutes but at the time it felt more like 30 minutes. Everything's good, he's now kinda happy to have lost a "Disney tooth", so we hand him back his Mickey Premium. He looked at that ice cream like it was an object of evil. "I'm not eating THAT." LOL!