James and Seamus are having a debate and whether PCs or Macs are better computers. James says, "I like PCs because they allow me to run several programs at once, are compatible with all of the analytic software that I use, and can be run from a command line if I want to do so." Seamus replies, "Oh yeah? Macs are better than PCs because you’re a lying idiot." What kind of reasoning fallacy is Seamus using?