Sopranos, The - Danger/High Voltage
In this episode, Dr. Melfi is raped and later has a dream about her rapist, a soda machine, and a large dog. In talking to her therapist about the dream, he reminds her that the door she walked through in the dream had a sign that said "Danger" on it. She says, "No. It said 'High Voltage'" and so on. She disputes that the sign said "Danger." While the sign shown in her dream did say "High Voltage," it also clearly reads "Danger" across the top in large letters.
Season 3, episode...3? (the one where Dr. Melfi is raped)