Or put the 15 delay on the cattery? I rather like the 15 minutes wait time on my boxes, it's very exciting, if it's just 5 minutes or instantly then I'll get horribly bored with it. For me, opening a box is a special event, it's not something you do in a rush, it's something you plan a little a head and then get all excited you're about to burst before the 15 minutes are up