6. Another Theory on Stan's Intentions
This chapter by Prez Cipher
Okay. I promise that this is the last you'll hear from me for a while. This one's a little far-fetched.
So in "Tourist Trapped" Stan doesn't warm up to the twins much until the end. Then in "Legend of the Gobblewonker" he suddenly cares much more.
What if the twins' parents are dead, leaving them in Stan's care?
They may have died in a car crash or something after they left, and Stan hasn't told them yet. He wants them to trust him more so that when he breaks the news to them they might take it a little better. Pity could also be a part of this.