#1 son is currently in the front yard, in the twilight, loudly being Harry Potter. I sent him out to get the mail from the letterbox and I guess he encountered a couple of Dementors on the way. :~D
He and son#3 were playing HP in front the PS2 eyetoy and son#1 took it upon himself to put a red biro scar on his forehead, scrounged his old glasses (which are very Harry Potter-like) out of a cupboard, a dressing gown for robes, and is out there right now shouting "Expecto Patronum" at the top of his lungs. I can hear him in here, so I'm sure all the neighbours are sharing the joy as well. :~)
#1 son has Down syndrome and his speech is rather poor, so his Expecto Patronum sounds more like "PeckoRownum!", which is pretty amusing to say the least, but I can't fault his enthusiasm!