Dave Chappelle at Radio City Music Hall

How Dave Chappelle Is Creating a 'No-Phone Zone' for His Chicago Shows

Poll any group of Hollywood comedians and you'll hear the recurring gripes about smartphones and their dreaded byproduct, smartphone video: The glowing devices distract during performances; their well-honed material plummets in street value once posted to YouTube; and, in the case of more provocative comics, it renders them the target of an angry Twitter mob.