You know what will get you every time? A grown man making heartfelt promises to a toddler.
Recently Brian Scott and Whitney Kay were married in Idaho. (Scott is apparently a NASCAR driver, but that makes zero difference on the sentimentality scale.) Whitney has a young daughter, Brielle, from a previous marriage and when it was time for Scott to read his vows, he took a minute to crouch down and speak to Brielle personally. Brielle's quite young and didn't seem particularly interested in what Scott had to say, but someday she'll watch her mom's old wedding video and see her stepdad saying this:
I promise to always hold your hand and skip with you down the street and bring comfort to your life. I vow to make you say your prayers before you eat. I promise to read you stories at night, to always tuck you in real tight. I vow to show you how a man should treat a woman in my relationship with your mother and above all else, I vow to protect you, care for you and love you forever.
Weeping commences at about 4:12.