'centre of the universe' skinhead, but likely a frustrated "generation Y". Speeds up to stop others passing him on motorways, then changes lane into their path, forcing unsuspecting drivers overtaking to take evasive action before slowing down again looking for the next motorist to torment. First saw him on A90 passing Perth and assume he was going to Aberdeen or Dundee. Be ready for his last-second swerve and rather erotic speed control!
Good Driving, keeps good distance behind. Considerate