OMG the replies on this thread! 
My question was prompted by a situation in the tiny company I work for.
The adult child of the 70+ parent referenced is not their carer. Just too upset to come to work.
I'm posting as someone who took annual leave when I had to visit my ailing parent on a work day, or deal with the sale of their house, clearance of their house, moving them into a care home. 1.5 days compassionate leave off after they died and 1 day for the funeral.
We are trying to work out what is reasonable for a non-carer to have off because they are upset and worried. So far it has been over 2 weeks.
I have some say in the payroll and HR, hence my question.
I suppose it is always just different in a small company with no union and nothing stated about this sort of scenario in the contract. Because of this and various other personal situations in the company as it expands, I am thinking of asking the boss to add a clause to the standard works contract.
Thank you very much for any insightful replies.