Hes just pissed you took his apex- the better question would be have you ever chased down somebody for 10 miles to congratulate them on a killer u-turn or ballsy on-ramp speed? thats commitment right there.
Embiciles that refuse to use their turn signal really irk my Fast. Whats the big deal about letting others know what your intentions are? I don't think people look cool by not signalling, in fact I think the complete oposite. It makes a person look lazy and incompetent, and is a good indication of a lack of driving skill. Make it an offense that takes away the offenders license!!!