... you go off for a weekend near your favourite kite-flying field, and you take all your favourite kites with you. And then there's a wonderful, dry, windy afternoon so you say 'great, I'll take the Silver Fox (substitute your own favourite here) up to the field and have some fun!'
And then you realise that, although you remembered to pack the kites, you left behind the bag with your stake, and all your lines, and your handles ...