I know some German animal right's activists who object to the verb 'fressen' since they see it as 'speciesist.' (Don't laugh at them, they are perfectly lovely people.) To be fair, they also don't like the verb 'fressen' because it was used in concentration camps to demean Jews - Primo Levi, for example, after being liberated from a camp, was working after the war in the field of chemistry. He was at a very important meeting where his university was looking to raise funds, because he was the best German speaker. Everything was going well up until lunch time. He said something like: 'Ich habe Hunger - wollen sie fressen?' (He addressed the German's as 'sie,' I remember that much, so it seemed like an insult directed at them - if he had said 'wir' it mightn't have seemed so bad.)
Of course, they were very insulted, more so at the time than they would have been today - back then the word was more offensive. He was asked if he was deliberately insulting them, and if not, where on earth he had learned German.
The answer 'Auschwitz' did not go down well. The Italian university did not get their funding.