erials by other means." Fla. R. Civ. P. 1.280(b)(4). The required "showing" under Rule 1.280(b)(4) "consists of specific explanations and reasons." Speer v. Desrosiers, 361 So. 2d 722 (Fla. 4th DCA 1978). To show "need," a party must present testimony or evidence demonstrating the material is critical to the theor