In our pod (family) we've adapted the 'I love you more than...' sketch from Little Britain. It's basically us saying 'I love you more than (something unpleasant)'. Only theBoy forgets and actually will express a genuine love scaling.
Me—'I love you more than bee stings!'
(This admittedly, after much cajoling. I kept shout-recommending 'mouse bites' or 'mice biting' but he steadfastly ignored me)
theBoy—'I love you more than Lego!'
(1) A neologism invented by me, just then. A door floater. A sorry reference to the wreckage whosie-whatsit from Titanic clings to in the freezing ocean post-sinking even though there's clearly room on the door (I am presuming it's a door) for Jack, who stays in the water. Indeed you'd think the shared body warmth would have been an obvious additional survival advantage but, well, love and hypothermia makes fools of us all.