Court of Appeals for the Eighth Circuit April 28, 2000, 99-2260 (Joseph Dicarlo Mary Kay Dicarlo v. Keller Ladders, Inc. Builder's Square, Inc.)

BOWMAN, Circuit Judge.

Joseph DiCarlo fell from a stepladder. He and his wife, Mary Kay DiCarlo, brought this suit to recover for resulting injuries, the defendants being the manufacturer of the ladder, Keller Ladders, Inc ., and the firm believed to have sold the ladder, Builder’s Square, Inc. For convenience, we refer to the defendants collectively as “Keller.