A minyan has just finished davenning and its participants are leaving.
The next minyan is starting saying the morning blessings.
Is there any obligation of the departing people to hear all the morning blessings before leaving? There could be a reason to stay to be able to answer “omain” to the blessings.
(I ask this because I have observed members of the earlier minyan standing by the exit door while the morning blessings are being said.)