If you’re not all that familiar with #MelGibson’s father, “Last Week Tonight” host #JohnOliver would definitely recommend checking out the man’s Wikipedia page. The HBO host was simply stunned by it on Sunday night. The actor originally lost his gun rights in 2011 when he was convicted of a misdemeanor charge of domestic violence after he pled no contest to the charges as part of a settlement to avoid jail time. But, Oliver also encouraged viewers to go check out Gibson’s Wikipedia page to refresh themselves on the actor’s other scandals (which include being labeled “a serial bigot”). At that, the late night host also directed people to the page of Gibson’s father, if only for just the first paragraph. “‘#HuttonPeterGibson was an American conspiracy theorist, Holocaust denier, writer on sedevacantism,’” Oliver recited, clarifying that sedevacantism is the belief that there hasn’t been a valid pope since 1958. “‘A World War II veteran, the ‘Jeopardy!’ grand champion for 1968, and the...