This is on him, IMO. 1:53 is an absolutely terrible time to call. Your instructions seem perfectly clear to me, although I am currently in the kind of mood where I will pick a fight with anything that moves.
I hope you are able to express this to him.
__________________
'Somewhere up above the great divide
Where the sky is wide, and the clouds are few
A man can see his way clear to the light
'You have all the grace you need for today, and today is all that matters.' - Steve Austin