Most MILs darling sons would not:
Receive Birthday cards / presents
Receive Christmas cards / present
Invitations for Christmas or any other family event
Have much of a relationship with their Grandchildren
And in return, MIL have generally given us their sons that
Think there is a towel fairy
And a diary that orders Christmas presents and send cards
And a fairy that responds to endless messages from school
And a patience fairy for said MIL who expects all of the as above
The End.