Watch out for warning signs of workplace violence: Consultant offers tips on avoiding trouble.

Byline: Brian Haas

Oct. 11--Gary Hopkins' work is much harder these days. The electrical contractor supervisor has nerve damage in one hand and partial paralysis of the other. All thanks to an enraged ex-employee, who exacted his revenge with a barrage of bullets. "He came back and jumped out and starting shooting," said Hopkins, recalling the June 27, 2006, shooting in Fort Lauderdale. "His whole objective to coming back was to get even. He just started shooting." Hopkins' case isn't isolated. In March, a Wendy's restaurant west of West Palm Beach was the scene of the murder of Palm Beach County Fire-Rescue Lt. Ray Vazquezand the wounding of four others by a …