Charlie Culberson doesn't always hit homers, but when he does, he's got great timing

A prominent cable network has a slogan boasting that it "knows drama," but the same can be applied to Charlie Culberson. On Monday, he came off the bench and drilled a two-run walk-off homer to give Atlanta a 4-3 win over the Mets.
It was dramatic, and he received a hero's welcome at home plate: 

This was the third walk-off homer of Culberson's six-year career, and it happened on his mother-in-law's birthday.
Rewind to Sept. 25, 2016, in Los Angeles. Vin Scully was calling his final home broadcast of his legendary career, and the Dodgers clinched the NL West title when Culberson hit a solo shot in the 10th, an inning after Corey Seager tied the game with a homer of his own:

Rewind further to May 3, 2014, when Culberson was a member of the Rockies. He celebrated his wife's birthday with a two-run walk-off blast to center:

It's important to point out here that Culberson only has seven total homers in his career. Three of those have ended a game (and let's not forget his first career hit in the World Series, a homer in Game 2 last October).
As MLB.com's Mark Bowman summed it up on Monday:

Culberson's three walk-off homers:
5/3/14 vs. Mets -- His wife's birthday
9/25/16 vs. Rockies -- Dodgers clinched NL West during Vin Scully last home broadcast
Today vs. Mets -- His mother-in-law's birthday https://t.co/QWMSuHXF6S

— Mark Bowman (@mlbbowman) May 28, 2018

What personal key dates might be next up for a Culberson walk-off? Does he have a sister-in-law?
"Yeah, but her birthday is in March," he told Bowman after Sunday's game.