MELBOURNE, Fla. – A man who was apparently upset about being arrested repeatedly flushed the toilet in his cell until it flooded the area then made a death threat toward the officer who took him into custody, according to the Melbourne Police Department.Police said a man flagged them down Wednesday on Longwood Boulevard to let them know that a man later identified as John Adams, 40, had just stolen his Schwinn bicycle from his garage.The victim confronted Adams and got the $150 bike back, but he still wanted to press charges since he had surveillance video of the incident and his family was home at the time, records show.Police said they located Adams nearby and took him into custody.Once placed in a cell in the booking area, Adams became.