∞ (infinite loop) of de-ownership

10: This is a infinite story about ∞ people named Everybody, Somebody, Anybody, and Nobody.
20: There was no important jobs to be undone and Nobody was sure that Anybody would do it sometime.
30: Everybody could have done it, but Somebody did it.
40: Nobody got happy about that because it was Anybody's job.
50: Somebody thought that Everbody could not have do it, but Everybody realized that Everybody would do it.
60: It ended up that Nobody blamed Anybody when Somebody did not do what Everybody could have not done
70: Goto 10