There's at least one notable and somewhat easily offended group that had stayed off that list: PETA.
That surprising omission has now been filled. Clarkson elicited howls from PETA after posting a picture of a just-crushed mouse on Twitter. It seems the rodent was turned into mincemeat during filming in Moscow.
In related news, Clarkson's very next tweet was also from Russia, this time in a restaurant. The picture, which was of a table with wine glasses, an ashtray and a lit cigarette, was captioned: "Perfection. Civilised country. Russia." So... next up to be offended? Anyone who doesn't like toxic smoke around their food and drink, perhaps.