The brazen robbery attempt was carried out on Thursday at the district court in Kristianstad in Sweden's far south, the local Kristianstadbladet newspaper reports.
The would-be thieves pilfered several items from the courthouse break room before then targeting the toilet.
"It's been said they had been at a hearing. They clearly thought what was said was crap," said Mikael Persson of the Kristianstad police to the newspaper.
The two toilet-seat-takers, both of whom have had previous run-ins with the law, were also caught on a surveillance camera attempting to break into a storage locker, according to Kristianstadbladet.
But thanks to the actions of some quick-thinking officers, the two thieves, a 24-year-old woman and a 38-year-old man, were promptly arrested outside the courthouse before they could make their getaway.
They are now being held under suspicion of robbery and attempted robbery.
When searched by the arresting officers, the man and the woman were found to be carrying the toilet seat, tea, coffee, and sugar.