When this British family walks across the rug in their living room, they have to make sure they watch where they step.
A few months ago, Deb Lythgoe, 34, and Pete Chisnall, 37, bought a slate gray rug for their home when they realized they had a problem: It was the same color and texture as their poodle, Stanley.
The next thing they knew, their five children were tripping all over the camouflaged canine as he nestled on his favorite spot in the house.
More Pets and Animals videos
Meet the winner of this year’s World's Ugliest Dog Contest
This gorilla has some epic dance moves
Watch Zola the gorilla have the best time in a mini pool
Sweet baby and dog have the most adoring friendship
"We didn't notice that he blended in until we took a photo,'' Lythgoe, who lives in Greater Manchester, told TODAY. "Even though the children kept falling over him, it didn't really click."
The couple's five children, Kayleigh, 14, Ryan, 11, Ava, 8, Aeryn, 1, and Joseph, 6 months, can't seem to avoid Stanley.
Luckily no one has had any serious falls, other than a few small tumbles.
Lythgoe compared it to the "cigar in the brick wall" optical illusion that captivated the internet in May.
And since it's the 7-year-old pup's favorite rug, it won't be going anywhere anytime soon.
"The children still trip over him all the time,'' Lythgoe said.
Follow TODAY.com writer Scott Stump on Twitter.