As I recall, when Josef walks over to the robot in the wheelchair and "talks" to him he is then shown a bubble with machine oil dripping into the decanter. Maybe that's why it's not in the mini-game?
Does that make the game more difficult to complete without that being mentioned in the mini-game, do you think??
I know it's very hard to regain "Beginner's Mind", as I've been re-playing Machinarium (pre-patches version) and yet I haven't had any problems with game-play whatsoever. I guess now one can understand the difficulties of the Testing Process, eh?
It makes me more thankful for
Lucie and Linda, the testers, than ever!