I tend to agree with my grandfather who used to say "Young people have young children, old people old children"... so no you are absolutely not alone.
Yes, I think GCs play up if their parents are there. GDs are horrible to us when with their parents, especially when their father is there.
Copper be careful that you haven't caught the chickenpox. Also watch out for shingles.
The year I was 40, although I had been told I had had them all, I caught mumps, German measles and chickenpox... 
You should all feel very proud (imho)
No fun being old under Andy Burnham .
‘The ‘professionals’ - finally finished, phew!


