Clearly.co.uk has a preselected checkbox on its checkout page

“Shipping protection is preselected, meaning that users who do not notice the checkbox will end up paying an extra £2.95 for insurance that they may not want or need. ”

Disclaimer: examples in the Hall of Shame are generally drawn from public submissions and cited sources; they have not been independently verified and may contain inaccuracies. They are presented as illustrations of design patterns, not findings of fact, unlawful conduct, or intent.