Maybe don’t use Skype to testify in a nationally televised trial. George Zimmerman’s former college professor was repeatedly interrupted by pranksters who dialed in after his Skype name was broadcast. Scott Pleasants, who teaches a class on criminal investigation, called in from Colorado, but the public quickly figured out his Skype line and started calling him. It was one of the lighter moments of the trial as the noises and pop-ups led to laughter in the courtroom. Pleasants had to use his cellphone to finish his testimony.