Shoppers in an Asda watched in horror as a rat scuttled around the clothes section.
The huge rodent was seen wandering around the George aisles at the supermarket before staff were eventually able to remove it.
Footage of the creature was shared on TikTok following the invasion at the branch in Linwood, Paisley.
The poster described the sighting as "disgusting", "creepy" and "weird" before adding "don't go".
It's thought the rat got into the superstore through a compost delivery after it was spotted on Saturday and removed later that day, Daily Record reports.
The video on TikTok has since been shared over 2,500 times, raking in almost 10,000 likes.
Floods of comments have also come in with many disgusted by the sight.
One person said: "I get my shopping in there all the time - raging!"
Another said: "We shall never be stepping foot in that place again."
A third added: "My skin is crawling", while another said: "It's OK people joking, but if there's one there's more, and they step on the food, pee on it too."
Others quipped that the little rodent was just in for some shopping.
One said: "It’s only in to buy a wee jacket…chill out," while another added: "Calm your jets it’s just doing it’s weekly shop [sic]."
A third, meanwhile, joked: "It’s okay guys it’s just my ex."
An Asda spokesperson said: "We have robust processes in place to uphold the highest standards of hygiene in our stores.
"As soon as we were made aware of this, a thorough investigation followed and the issue was resolved."