There are some conversations that are so (subtly) sweet you have to grab them for posterity.
So last night's conversation went like this: Charlotte came in from school and announced she'd come top in her Maths exam. Léon piped up 'Do you still do adding at high school?' Charlotte came out with 'Yes but it's harder adding at high school, we add letters as well as numbers' Léon immediately came back with ' So do you add not just 12+15 but also t-w-e-l-v-e-p-l-u-s-f-i-f-t-e-e-n?' spelling it out carefully!