Missing Piece scene from Breaking Bad the Bags in the River ( TV Episode 2008)

Walt weighs the pros and cons of killing Krazy8, then collapses on the basement floor while bringing him a sandwich, shattering the plate. After he regains consciousness, Walt tells Krazy8 he has lung cancer. After engaging in conversation with Krazy8 and seemingly forming a bond with him, Walt decides to go get the key to the bike lock keeping him captive. However, he realizes that there is a shard missing from the broken plate.