When family members offer to babysit, it can help take some of the responsibility off the parents ‘ shoulders and give them time to work, complete tasks, or even go on a date. It only becomes a problem if the babysitters cancel at the last minute, leaving the parents to scramble for childcare.
This is exactly what happened when a man left his sister high and dry a day before her anniversary, just so that he could go on a date. She and her husband were incredibly hurt, but the man didn’t feel he did anything wrong.
More info: Reddit
