Problem: Continue the following story.

It made more sense for Justin to be the designated driver than Samuel because 
Here's how I want to continue it: Justin didn't have a lot to drink.

Problem: Continue the following story.

Tanya is being taught to survive in the woods by Erin. This is because 
Here's how I want to continue it: Tanya is a novice camper.

Problem: Continue the following story.

He decided to forge a blade instead of buying a knife, because the 
Here's how I want to continue it:
knife would be a lot weaker and  less personal.