Essa, 23, shakes a can of red spray paint, crouches over the sidewalk near Baghdad's Tahrir Square and scrawls something shocking about Iran's supreme leader.
"Khamenei is an ass," it reads.
The insult to Grand Ayatollah Ali Khamenei, spray painted without fear, would have been unimaginable before anti-government protests swept from Iraq's southern coast to its capital in the past month. Demonstrators accuse Iran and Iran-backed politicians of of controlling Iraq and harming the country's interests. Iran has strong links to Iraqi security and intelligence forces, and even perceived insults have led to threats.
Essa says he's not afraid. He has nothing to lose. He's a laborer but he has no work. And like most of the protesters, he blames their entrenched poverty on corrupt Iraqi politicians who put other countries' interests first.
The protests, the biggest since 2003, have shaken the foundations of the Iraqi government. More than 250 protesters have been killed and thousands more wounded since the demonstrations began in early October, demanding jobs and better public services.