There are 11 people at shacharis.
Reuven has to leave at 730 Shimon has to leave at 725.
Every day Reuven is known as the minyan breaker.
Is it better for Reuven to leave at 724 so Shimon is the minyan breaker?
The scenario I am thinking of is after repetition and Torah Reading. There might be a few kaddishes left.