Swedish conceptual artist, Lars Vilks is no stranger to controversy or irritating Muslims.
On 11 May 2010, Muslim protesters assaulted Vilks while he was giving a lecture about free speech at Uppsala University. The attacks started when a film about Islam and homosexuality that had been banned from YouTube was shown. The film in question was Iranian artist Sooreh Hera's Allah ho gaybar.
Vilks' glasses were broken but he did not suffer any serious injuries, and was escorted to safety by security, while a few of the protesters were detained by police. Despite previous death threats, this was the first time violence against Vilks occurred.