This is the scenario, curious to understand view points -
DS dad recently arranged to see DS(10) on 2 set nights a week plus sometime over the weekend. This arrangement has only happened in the past couple of weeks. He can't make his planned visit tonight, him and his wife have a hospital appointment/procedure. He can do any other night. Would you allow flexibility or insist he sticks to plan. So it's the night as planned or nothing.
Thoughts?