i was at a friend's barbecue.

the other guests had their children with them.

playing with little chris, laura & matty, we happened to be talking about brothers & sisters. laura hadn't met the brothers before. she said 'i haven't got a brother'

chris replied 'i have'

she said 'whats his name?'

chris said 'matthew'

i couldn't resist it, i said to chris, 'has matthew got a brother?'

he thought for a moment, then said 'no!'