-Headless Nick quest is still bugged. The head is not pickable.
Well, I had to talk with the head and not to pick it up. Quest worked for me.
When I try to click on it, it shows orange gears icon, meaning taking it would be stealing. But even when I do try to steal it nothing happens - it's not talking to me and cannot be picked. Maybe that's because I've done entrepreneur quest first and failed to move the crowd to the other guy.
