I'm another scientist, Lalsy, you're not alone. Loved academia & loved my colleagues, with remarkably few exceptions.
MrsS, can you choose what part of the presentation you want to cover, send him your outline and instruct him to do what's left? He's the tardy one, he should have to work round you.
Hope you feel better soon, Rose. Hint: don't look at Twitter. It won't hasten your recovery 
Poor niece is staying up with baby, who's been unwell for weeks with infections & had a febrile convulsion today. Feel so sorry for her. The terrors you go through with toddlers can be awful. DD's teens, so far anyway, have been a doddle in comparison.