What is the most subtle irony you have ever heard?

The most wonderful fable I have ever seen, there is a rule in hell that whoever hurts someone on earth will be drowned by the blood of the victim. Once God visited hell and found that the blood only dipped into beria's leg. God was very surprised and asked, "You killed so many people, why did the blood only flow to your legs?" Beria replied: "Because I stand on the shoulders of the great leader Stalin!"