It's been an interesting week for people who work in public relations.

United Airlines dragged a screaming passenger off one of its planes, injuring and bloodying him in the process. Sean Spicer, the White House press secretary, claimed that Hitler didn't use chemical weapons, apparently forgetting that the Nazis murdered millions of Jews in gas chambers.

Not to be outdone, the national organizers for the March for Science said, "Hold my beer, and watch this."