Conservative Ron Futrell knew to expect plenty of left-of-center jibes when he settled into his seat to see Bill Maher at The Pearl Theater in Las Vegas June 8.

Futrell didn’t think he’d hear the HBO personality mock former Gov. Sarah Palin’s special needs child or hear the crowd laugh right along.

Futrell, a former Las Vegas sports broadcaster and Breitbart News contributor, says on his blog that Maher used the term “retarded” to describe young Trig Palin during the comedy performance. Later, Futrell started heckling the comic over a reference to Halliburton, a confrontation which eventually led to Futrell being asked to leave the venue.

He didn’t regret speaking out during the stand-up event.

“I will also always be glad to stand up for those, who many times, have no voice,” he wrote on his blog regarding the incident.

This isn’t the first time Maher used an ugly term to mock Palin’s son. On Real Time with Bill Maher, the host compared the Palin family to the inbred villains in The Hills Have Eyes, a ’70s era horror film.