Brian Burke is being blindly obstinate in his insistence that he doesn't need to be in the office on July first, even though as he points out that he's reachable by phone. Last year he was in Afghanistan visiting Canadian troops. This year he decided to march in a Gay Pride parade.
There are other opportunities to honour his son, 364 other days of the year. If you’re a NHL GM you can miss July 1 to attend the funeral of your son, or the birth of your son. You cannot miss July 1 to go to Afghanistan or march in a parade, however worthwhile the cause, cellphone with full bars or not.