... When whenever you hear 'Blood Gulch' or 'Fort Deen' or 'Arbiter', you break out in convulsive and psychologically unstable crying, whining 'I want it.... whhhyyyyy... can't waiiiiit'
... When you want to get everyone in the room's attention and you declare in an authoritative tone 'Local Units'.
... When you plot out your route with an imaginary X button on your drive to work every day. Alternately, this can include attempting to Y button obnoxious bystanders.
... When you try and use a regenerator when you get a papercut, bruise, stubbed toe, etc.
Feel free to add me, I'll accept just about anyone.