Retractable roofs are big, cool and expensive, and like any other big, cool and expensive thing ever made, they're prone to some annoying hiccups.
In the case of the retractable roof at Chase Field, it has some problems with its "being a roof" function—or, more specifically, the part where it shields those beneath it from the elements.
Gaps in the roof's structure made their presence known thanks to a heavy rainstorm that dumped down on Phoenix during Monday night's game between the Arizona Diamondbacks and San Diego Padres.
The rain trickled through the roof and fell predominantly on a section of unlucky fans seated behind home plate.