First day back at work after 2 Weeks vacation and I am greeted with my substitute not having done ANY of the work I had prepared for him...I I literally pre digested the project for him!

Ironically, when he went on vactation in october I had to take over this project for him and he hadn't even worked on it yet, nor had he prepared anything for handover... I had to gather all of the info on my own.
Then I was even so nice to not get revenge and still prepare handover materials for him and what does he do? Nothing. And he's so casual about it!