Flimsy anvil shelf
From BNSwiki
Apparently anvils just aren't meant to be shelved...
Beaver's flimsy anvil shelf was one of the subtlest plot devices known to man, launching the "Steve's unfeasible afterlife adventure" storyline in a way that noone could have foreseen.
Having resulted in the death of a titular character, the flimsy anvil shelf also shortly went on to cause the introduction of his temporary substitute, Stu.
