Fix glitch

Fun game, but it has some glitches, robot will not take items in inventory until after several tries, now Im totally stuck at the dog/oil can part, the robot will not take the combines plunger/gun to shoot the dog while he it drinking the oil! He just shakes his head.....frustrating! This game is not cheap! So please fix the glitches!!!

Don and Evon Otto about Machinarium