Agreed

Our son (10): ‘Grandma, Grandma..!’
Grandma: ‘Just a moment, Walter, you can see that now I am talking to your sister, I cannot pay attention to 2 places at a time..’
Walter: ‘Very understandable, Grandma. I totally agree that it is best if you pay attention only to me.’
Ok, so let that 2020 begin..