He should have thought this one through.

Shaun White has issued an apology after receiving a lot of backlash for his choice to go as "Simple Jack" from Tropic Thunder on Halloween.

In case you didn't know, the character from the movie is portrayed as mentally handicapped, and fans along with the committee for the Special Olympics didn't find the humor in it.

"We are truly disappointed that Shaun White, an acclaimed Olympian, would choose this costume which is so offensive and causes so much pain. Disability is not a joke nor should it be a punchline. We hope that Shaun White and others learn that this just continues stigma, stereotypes and discrimination," Soeren Palumbo, senior director of global youth engagement at Special Olympics, told HuffPost in a statement.

The snowboarder was quick to respond.

"I owe everyone in the Special Olympics community an apology for my poor choice of Halloween costume the other night. It was a last minute decision. It was the wrong one. The Special Olympics were right to call me out on it. They do great work supporting so many tremendous athletes and I am sorry for being insensitive. Lesson learned," he wrote on social media.

We can't believe that people - cough cough, Megyn Kelly - still think blackface or poking fun at people with disabilities is OK!