The most depraved episode ever?

The Hulu description for S8 E6, “Charlie’s Mom Has Cancer,” reads:

“In perhaps the most depraved scheme of them all, The Gang rallies around Charlie’s mom as she battles cancer.”

I am skeptical of the episode description — is this REALLY the gang’s most depraved scheme ever? In your opinion, what beats it? What is the worst thing the gang has done?

(I would have to vote the baby funeral in “Sweet Dee Gets Audited.)