Attacks your logic
No true Scotsman
When a counterexample shows up, they redefine the group to exclude it.
The first tell
You feel outmanoeuvred. That feeling arrives before you can name the move.
What it sounds like
Someone says: No real fan would criticize the team. You point to a lifelong fan who does. They say: Then he's not a real fan.
Say back
You changed the definition after I gave an example.
If they push
I'm just being precise.
Then give me the definition first, and we'll test it.
How this family is disarmed
Restate the real claim, add the missing options, or ask for the missing step.
Paid
See it in dating and at work
Context packs show this tactic in the settings where it does the most damage, and let you drill it against a timer.