VIDEO: Fire captain Anthony Valverde gives us a play by play of each step of an Acrophobia Test, in the blazing Arizona summer heat. Even in a normal year without COVID-19, firefighters in training have to overcome a lot of challenges before putting on the gear and taking that first official call. One of those hurdles is making sure they aren't afraid of heights. It’s a test every firefighter has to pass in Glendale, and that's climbing a ladder on top of their truck that stretches about 100 feet into the sky. Safety is key for the drill in the Glendale Fire Department. Fire Captain Anthony Valverde gives us a play-by-play of each step in the blazing Arizona summer heat. The climb is called an Acrophobia test.