I agree bright sparks, people serve their needs first and according to their schedule. I had dcparents who routinely called at 9:30 at night to discuss their child or to tell me they would be 15 minutes late in the morning. After a couple of these intrusive calls I let it go to voice mail. I later told her that this is our down time and I would be happy to take her calls during My working hours. Still called at this time.
My hubby ended a proffessional relationship because this person called early mornings, late evenings, weekends and holidays to discuss something that had just occured to him. He like to voice his thoughts immediately. After asking him not to call our home at all and to text he still continued to do so. Relationship ended.
So yeah, even when we ask for time courtesy some folks just don't get it.