The world's most famous hamburger cook is being skewered by members of the striking Screen Actors Guild. Dave Thomas, Wendy's founder/chairman/pitchman, shot a nonunion commercial and has resigned from SAG . According to Variety, Thomas previously said he would wait to shoot new Wendy's ads, until the strike against advertisers was over. "Dave has changed his position on this issue because, although he respects SAG's position, he also believes he has a greater responsibility to the 200,000 employees who work for Wendy's," Wendy's rep Denny Lynch said.