Episode #2.2
When Christian Donaldson (played by Michael Maloney in Episode #2.2, 2014) drags Dr. Tony Bradley over the floor in the abandoned building after this one has suffered a stroke and is dead, one can see that Bradley has lost his spectacles. But later, after Arby has shot the fourth assassin and pulls Donaldson away from the dead Dr. Bradley, one can see that the glasses are back on Tony's nose.
When Tess walks into the kitchen with the hedge trimmers, they are still heard running even though the chord is unplugged.