The newly-engaged couple then turn around to find Owen baring his bum at them after finishing going to the toilet.
Luckily, family members were on hand to capture the hilarious moment for posterity - and for the enjoyment of YouTube viewers everywhere.
A MI boy has gone viral for helping his mother mark a special occasion - a wedding proposal - but it's the unconventional way that he did it that's grabbing people's attention.More news: Whole Foods sales items get even cheaper for Amazon Prime members
The three-year-old's antics go away Kevin's 11-year-old daughter Kayleigh, who was filming the entire episode, in matches of giggles.
It was a memorable marriage proposal, if not for the reasons the groom-to-be intended. You know, the string quartet springing out at exactly the right time, the waiter taking the dessert concealing your ring to the right table. Unimpressed with what mom and dad were doing and feeling the call of nature, Owen dropped his trousers and emptied his bladder (don't worry, the video is blurred).
When you've got to go, you've got to go!
Przytula is then heard saying, "Oh my God, he's peeing".More news: NRL fans react to Cameron Smith announcing retirement from representative footy
Allyssa told MLive: "He stole the show, for sure".
'He pees outside at home sometimes in the yard, and we went and got ice cream the other day and he did it in the parking lot there, ' Anter said.
"He simply does it with out telling anyone, he simply pulls his trousers down and goes".
Since the video was posted to Facebook on Saturday, it garnered over 56,000 views.More news: CMS teachers prepare for rally in Raleigh