SAN FRANCISCO — By now, you may know about Madison Bumgarner's playoff beer celebrations. They're both a social-media phenomenon and a San Francisco Giants superstition. Bumgarner chugged four beers when the Giants won the NL wild-card game. Well, chugged/bathed in/spilled four beers, whatever. When the Giants beat the Washington Nationals in the NLDS, Bumgarner moved up to five beers . When the Giants won the National League Championship Series on Thursday night — thanks to a Travis Ishiwaka walk-off homer that's sending them to Kansas City to play the Royals in the World Series — Bumgarner knew what he had to do. The personal six-pack. You'll notice in the video above that teammates even tried to add some champagne to this booze shower. Congratulations, Madison Bumgarner, on wasting 6 MORE BEERS. pic.twitter.com/lZpACYGuu0 — Katie Nolan (@katienolan) October 17, 2014 "I did six," Bumgarner told The Stew. "I don't know if I can hold any more than that. I had to keep it going though, because we seem to keep winning. We don't want to change anything up." Between bullpen sessions, he'll have to work on holding seven beers in case the Giants can top the Royals...