Even if a group of niggers is say, at a Denney's (a common occurrence) and one groid starts to chimp out at a Cat-1, the nigger usually moves quickly, sometimes instantly, from a Cat-1 to a Cat-2 or Cat-3, and more niggers join in at any time because niggers are naturally drawn to violence as part of their jungle mob behavior and their proud culture. Again, a group of groids just moves the niggers from one category to another at a much faster and higher rate that a single nigger chimping. Usually a group of pavement apes do not start at a Cat-1 or Cat-2 level. Most often there is the usual nigger glaring and vocalizations followed by a spark that causes the niggers to explode in a flash to an Cat-4 or full-blown Cat-5 chimp out.
There is a lot of detail in the different levels in my descriptions because niggers are a public safety issue. Therefore it is imperative, even vital, that all humans are able to recognize at what chimp out level a nigger or group of groids is so they can tell if it is good entertainment or they need to call the police immediately and get the hell out of Dodge.