On Tuesday, Jesus Guzman belted an eighth-inning, two-run, pinch-hit homer against Giants reliever Jeremy Affeldt to give the Padres a 4-3 lead. This excited him.

He watched the blast. He walked down the line. He held his bat. Eleven steps from the plate he spun 180 degrees, still moving toward first, and, with his back to the pitcher, bellowed toward his teammates in the first-base dugout.

Clearly, the Giants were not amused. How clear became evident during Guzman’s first at-bat on Wednesday, when Madison Bumgarner threw his first pitch waist-high and behind the batter. Guzman shouted toward the mound and pointed his bat at Bumgarner, all while taking the slow steps of a man with no intention of trading punches. (Bumgarner, however, veritably tore down the mound to establish a closer confrontation, and was restrained by on-deck hitter Yasmani Grandal and plate ump Tony Randazzo.)

Although dugouts emptied, each bench was warned and order was quickly restored. (Watch it all here.)

“I was enjoying the home run with my teammates,” Guzman said of his Tuesday night blast, in an MLB.com report. “I wasn’t trying to be disrespectful of their team.”

That may well be true, but even the greenest big leaguer, let alone a guy with four years’ experience—who, by the way, came up with the Giants in 2009 and was a teammate of Affeldt’s—should realize that such a display will almost inevitably be taken poorly.

Bumgarner’s response—a warning shot across the bow, as it were—got the point across: Think for a moment before doing something like that against us again. (Bumgarner, for his part, left his postgame response to the phrase, “There’s no need to comment on that.”)

Ultimately, however, it was Guzman who held the retaliatory trump card. Leading off the seventh against Bumgarner in a 1-1 game, he crushed a home run deep down the left field line. (Watch it here.)

This time he faced the appropriate direction, and ran every step of the way.