Gertie and Gilby have been playing schools.
Gertie dons a pair of spectacles and is transformed into the teacher. She is then able to boss her younger brother about with impunity. She enjoys taking a 'register', and it seems very important for new pupils to have a 'visit'. She sometimes enlists my help. I am usually 'Mrs Hancock', the school receptionist. At intervals I will be asked for various administrative details...starting date, forms, letters, etc. Gilby plays along well, but he has not experienced school, and certainly can't pronounce 'Mrs Hancock' with any degree of success. Both of them get very involved in the role-play. Gilbert, in particular, is preoccupied with who is who and what is what in their imaginative play-world.
At one point this week, in the midst of a 'lesson', Gertie and Gilby had a bit of a fight. Gertie came running in to the kitchen, shouting, "Mummy, mummy, Gilby's not playing nicely, he just..."
But I didn't hear what he 'just' did, because Gilby himself interrupted. "No Gertie. Mummy is not Mummy. Her is a cock."