It kind of started as a joke - in the daily schedule, there was a little thing written down that Randell must take a vow of silence and, well, he took it extremely seriously. He wrote a contract which Meg and Dom had to read out in order to get them to speak again. He said they'd be begging to get him to speak again and after something like 19 hours, they were. Here's what he wrote down for them to read.
Dom and Meg read Randell's contract to get him to break his silence