I work in a highly technical field that is currently undergoing some massive changes which will likely put a lot of people in my field out of business if they don't stay ahead of the curve. I am in a leadership position with the technical side of my company and am one of the people who are responsible for helping shepherd the company through this transition. There's a really important multi-day training (hosted only once a year and open to a very limited subset of people in the industry) coming up soon. 

I just found out (out of the blue) that my last grandparent is likely on their deathbed (in their 90's, has been in a nursing home for a number of years with dementia, but hadn't otherwise been notably ill of late). If the grandparent passes and the funeral conflicts with the training, WIBTA if I skipped the funeral? The training and the funeral would both be in completely different cities from each other (each a couple hour drive from their nearest airports), so there wouldn't be a viable option to just skip a day but attend the rest of the training.