A short checklist, just to make sure all of the elements are present;
- At least two pieces of Raiders clothing
- Not-necessarily-team-color facepaint
- Shaking head in disbelief as a result of what happened on the field of play
- Visibly on the verge of tears about something the Raiders just did
- Quiver lip
I think this is an excellent baseline for Raiders fan visualization. We can refer to this gentleman as "Raiders Fan Zero." The contagion only spreads outward from here.