Fred is a complainer. All he ever does is complain.
“How are you, Fred?” are the four most dangerous words in the English language. And, if Fred spoke any other language, they’d be just as dangerous in that, too. Instead, he complains about people who speak other languages.
“Why must people speak these other languages? Are they hiding something from us?”
Then he changes the subject to something like the weather, his job, his health, or whatever is bothering him.
Then, one day, when asked how he’s doing, he said “Eh, I can’t complain.”
We called the ambulance for him.