He continued: “I put the microphone in my pocket and my shorts started falling down around my knees.
“I’m like, ‘What’s happened? This is not right.’ It almost caused an incident.”
Despite the benefits of losing weight during the show, Bill revealed he is beginning to feel the “pressure”.
The comic is currently up against HRVY, 21, Jamie Laing, 32, JJ Chalmers, 33, Ranvir Singh, 43, and Maisie Smith, 19, to be crowned the Strictly champion.