Eddy Chen/FOX

Addiction is a horrible disease, and it's something worth addressing on a series for teenagers. At the same time, this isn't the right time: Turning the episode into an after school special on the dangers of drug abuse takes away from Monteith's memory. We know how he died — it's also something his friends and family will have to live with forever. The specter of addiction will hang over the episode, but any preaching would be both unnecessary and in poor taste. On the other hand, a PSA about getting help for addiction at the end of the episode would be appropriate.