On Saturday, Kevin Przytula took his girlfriend Allyssa Anter to Bay City to pop the question in front of the Ring of Friendship sculpture.
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In a video, captured by Przytula's 11-year-old daughter Kayleigh, Przytula drops to one knee to propose to his girlfriend of one year.
In disbelief, Anter called out, "Are you serious? Are you serious?" unaware that her 3-year-old son - who the couple had been trying to potty train - was getting a little antsy.
As the couple continued their sweet, life-changing moment, Owen - unaware anything special is happening - dropped his pants and started to ... well, relieve himself.
"Oh my God, oh my God ... You guys," a giggly Kayleigh said.
The couple quickly turned around and saw the toddler urinating on the ground.
"Oh my God, he's peeing," Przytula said.
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But the accident didn't make the moment any less special for the couple.
Anter said her son "stole the show," and acknowledged that his potty training is a work in progress.
And the moment didn't send the proposal down the toilet; Anter did say "yes."
The Associated Press Contributed and Storyful to this post.