Ronnie and Derek have a tight regime when it comes to cucumbers, as evidenced by Derek in this video. He’ll only accept the juiciest bits of cucumber at first, leaving the skin of the cucumber to eat later on, a bit like a child not eating the crusts of a sandwich!
Watch Ronnie and Derek try and make the best of a crust from a baguette which I threw in their cage. They weren’t allowed more than a small nibble though as they want to retain their ‘slender’ physiques, but were very reluctant to let it go!