At the airport when checking in:
Airport staff: Oh mr Lord, your hand luggage is too heavy... 11 kg. You are only allowed to have 7 kg.
Mr Lord thinking: Oh shit not again!
But Mr Lord replying: Ok give me a minute.
I remove a book, put it in the checked in luggage. I remove my giant camera and hang it over my shoulder. I take out my laptop and holding it in my hand. Give my hand luggage back to the airport staff. Once again she checks my hand luggage and now the weight is only 6 kg.
Airport staff: Thank you Mr Lord. You are now good for check in!
Mr Lord thinking: Thank you so much for this wonderful logic!