Another day, another photobomb fail.

In the latest instalment of husbands trying (and failing) to pull off a romantic gesture, a proud husband in the UK posted this doozy to Twitter ahead of his wife running the London Marathon.

Off to the #LondonMarathon today! Good luck to everyone running it! Rather you than me!! She is ready! ???????????? pic.twitter.com/SUszxrrec8

— Petrus du Plessis (@PetrusduPlessis) April 23, 2017

“Off to the #LondonMarathon today! Good luck to everyone running it! Rather you than me!! She is ready!” he tweeted.

And it would’ve been a sweet sentiment… had it not been for one, erm, crappy detail.

Unfortunately for the well-meaning husband, this is the kind of photobomb one can’t unsee.

Poop, der it is. (Image: Twitter)

We don't know who we feel more sorry for: the humans, or the poor doggo just trying to do his business in peace.

Have you ever posted a photobomb fail?