Brookfield Volunteer Fire Company is reminding motorists to slow down and wear seatbelts.  Between Thursday and Friday, firefighters responded to 3 major accidents with injuries, 2 involved rollovers and the other was a high speed head on collision.  In one rollover, West Whisconier was closed for a while Friday.  No injuries were reported.  Thursday night, Brookfield Volunteer Fire Department received 3 simultaneous EMS calls, including the other rollover.