Hilarious scenes of panic in an office in the Indonesian province of Jawa Timur from late April: a rat fell out of the ceiling and caused chaos in the working day.

A cat named Sonya had millions in stitches, after she came up with the most cunning plan for revenge. The clip has now been viewed 17 million times on TikTok.

A quick glimpse of social media will show they are a problem and a growing concern. The first Norway rat call Mountain Termite and Pest Control responded to in South Lake Tahoe was in 2014 ...

"The Norway rat can reach up to 40cm, excluding the tail, under the right conditions," he explained. "While there are biological limits to how large they can grow, consistently large food sources ...