system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout 4] What was Dogmeat doing before you found him after leaving the Vault?

Did he have a master? He seems too well trained for a stray.
gpt
I thought he hung out with the survivors from Quincy (i.e. The people you rescue from the Museum of Freedom) and went to find help when they were attacked, but maybe that was just me misunderstanding Mama Murphy.