I love single rider lines, and I don't have to be with my companion for every moment. I've only once been seated next to a child (dad with 2 kids - he was with the younger one in front of us). I told the little kid he'd be fine and we'd have a great time. I suggested he couldn't yell as loud as me. He could.
I'm with the PP who just nods to whoever I'm sitting with. Sometimes I get a chatterbox, but
As for the OP - that's loads of crazy. Sorry it happened to you and your sister.
I'm with the PP who just nods to whoever I'm sitting with. Sometimes I get a chatterbox, but

As for the OP - that's loads of crazy. Sorry it happened to you and your sister.
Thankfully, I was sorted into another launch bay by the CM. He was probably just at loose ends being on his own but being followed by a teenage boy when you are a middle age lady is not the best. I agree that pairing single riders with strangers can be problematic. 99% of the time it's just a bit awkward but not a big deal. It's that 1% of the time that can be alarming. If you've had one of those 1% experiences, you can relate.
It makes for an amusing story later but didn't do much for my ride experience. I don't know how WDW will end up dealing with these loading issues but no doubt in the near future we will hear on the national news about a stranger encounter on a ride that went way off the rails.