Continuity mistake: When Jack speaks to Michael and Jin, as they build the raft, and then when he walks up the beach and inquires about Sawyer's trouble with his head, the backpack that Jack carries on his back is nylon, black/green with white trim. Yet, when Sawyer asks, "Sensitivity to light, that bad?" the backpack is suddenly transformed into solid black leather, of an entirely different style. Then, in following shots it jumps back and forth. (00:16:40)
House of the Rising Sun - S1-E6
[While fleeing from an angry swarm, Kate takes her shirt off as insects are trapped in it. Charlie later finds her and hands her the shirt she dropped with a questioning look.]
Kate: It was full of bees.
Charlie: [Looking at her chest.] I'd say more like C's.
The End (1) - S6-E17
Trivia: The Oceanic employee delivering Jack's father's body has a name visible on his navy blue overall - it is Bocklin - Arnold Bocklin is an artist famous for painting "Isle of the Dead" in 1880. (00:04:00)
Answer: He was eating a peice of an orange with the skin still on.
XIII