If I can't eat the meal in a restaurant, and the waiter asks, 'Is everything all right, Madam?', I tell them that I'm on a diet.

In this quote, Cilla Black humorously reflects on the social pressures and awkwardness that can arise when trying to stick to a diet in public settings, such as when dining out at a restaurant. She suggests that if she can't finish a meal or chooses to pass on certain dishes, she uses the excuse that she's "on a diet" as a way to avoid any judgment or uncomfortable questions from the waiter or other diners. This statement highlights how people often use dieting as a socially acceptable reason for not eating in certain situations.

Black’s comment also speaks to the sometimes awkward nature of navigating social expectations around food. When a waiter asks, "Is everything all right, Madam?" she uses the diet excuse as a way to avoid explaining personal choices or preferences, especially in a public or social setting. This reflects the way people often feel the need to justify their eating habits to others, even when they are simply trying to make healthier choices.

The quote also emphasizes the cultural pressure around body image and dieting. By mentioning her diet, Black is subtly acknowledging how personal decisions about food are often subject to public scrutiny. This is especially relevant in a world where weight and appearance are often linked to social acceptance, and the act of dieting can be both a personal challenge and a socially significant choice.

Ultimately, Cilla Black's quote humorously underscores the tension between personal health goals and societal expectations. It reveals how people sometimes rely on external explanations, like dieting, to navigate social interactions and avoid potential embarrassment when making choices that align with their health or personal values.