Headscratchers / The Texas Chain Saw Massacre (1974)
Why, when Franklin was cut with a razor by the Hitchhiker, did the crew not make it their top priority to get him to a hospital/clinic? Or at least sterilize the wound with some soap or something. Instead, they just make a makeshift bandage for him. I know if a crazy guy who works with meat with a (probably) dirty blade I would definitely want to see a doctor post haste.
They were in a seemingly supply-less van in what appeared to be the middle of nowhere. Crappy makeshift bandages were probably all they had, and they probably stupidly thought it would be enough.
Also, in the following scene, they pull up to a gas station only to find no fuel. Chances are even if they wanted to get Franklin to a hospital, they wouldn't've gotten far.
Why take a wheelchair-bound man like Franklin on a road trip to a region where the roads are dicey at best and non-existent at worst? I understand his buddies wanting to include him, but they might have picked an activity where they could all participate. I'm not sure if off-road wheelchairs were even available in the seventies, though I doubt it.
He's there because he and Sally wanted to make sure their grandfather's grave wasn't robbed, and the house they visit was also their grandfather's. They did have a reason to be out that far.