Dina and Glenn accidentally ruined some ballots by spilling a pot of coffee. They are worried they will be accused of tampering with ballots and face jail time. If they both stay quiet, then nothing will likely happen to either of them. There’s an incentive to confess and try to get the other in trouble, but they both know who would responsible. Since they do not trust each other, they try to set each other up by pretending to be each other and recording their voices. This serves as a credible threat in the case that one of them rats the other out.