Sudden Syndrome

Sudden Family - Forgets you all year but gets mushy at Christmas-time and invites you to family gatherings you haven't been to in years.

Sudden Friend - Won't reply to letters but when passing through wants you to drop everything, bake a cake, and entertain.

Sudden Sibling - Excited and a little drunk at the airport, dying to tell you all about the coming week's plans in Japan.

Sudden Father - Gone for decades, promises to take you out for dinner one night but shows up and says he's eaten already, on the train.