Their are not too many petitions concerning rats. So I would like to promote this one because I used to have rescue rats as pets and they are very intelligent sensitive animals who simply don't deserve such a cruel end to their life.
https://www.thepetitionsite.com/en-gb/takeaction/241/188/145/
https://www.thepetitionsite.com/en-gb/takeaction/241/188/145/