Thanks for your comments Eloise - I can totally relate to coming to work feeling "stoned". I run a few simple reports first thing, and that way I can ease myself into the day before my brain needs to work full capacity.

I often dash out the office and have a smoke outside (Kind of like you stepping out the classroom to unwind) as I feel I'm going to really lose my cool, and bitinh my tongue is definitely not a speciality of mine!