Ah yes, I have that tune somewhere on MP3.
The scariest halloween gabber track I have is "Poltergeist" by Dr Macabre. The synths in that tune are harrowing. It's not fast - quite slow in fact - but insanely evil. Incidentally, he also does trance under the Lunatic Asylum moniker.
Gabber is like any hard music - it can cause people to get angry jsut like metal/industrial/drum n bass etc.
Looking forward to dusting off my old hardcore at the Gatehring though