I think my kids think Thomas and I are grammar bores, constantly correcting every slip. Yesterday's conversation with Anna (2) was amusing:
Anna finishes colouring in a picture and exclaims with delight: 'I done it!'
I correct: 'No, I did it!'
Quick as a flash and very angry she spits back: 'No you didn't, it was me!'
Emmmm - I think we've a wee misunderstanding going on here :-)