Dear Teetime Bless you, you are betwixt a rock and a hard place. You did the right thing. Children need to learn that sometimes bad, sad happenings make people cry (even at Christmastime). It appears that the plans you've made for sharing Christmas can, if necessary, be adapted. You will need to have a contingency plan that suits both you and your daughter. Think "flexible" and be assured that you will indeed be together and being so will be of the most comfort to your daughter. I shall return later.
Popped in very swiftly to say...Oh what a night it was..it really was. Hail, thunder and lightening, winds that sounded much like an express train going through a tunnel...waves as high as an elephant's eye...all very dramatic.
The top glass shelf in the bathroom had a wee chip in one corner, very close to the metal fittings. MacS had looked at it recently. He tightened the wee nut and bolt. He supposes that the stress caused the shelf to shatter. It took an age to sweep up the glass. As it happens, we do not take baths as such...we use the shower. Had the shelf exploded during a shower we would have been hit by glass but the fitting would have fallen in the opposite end and not on my/MacS's head. 
Soutra
Well done to the nursery staff.