My beloved's first language is not English. You'd probably never guess, to speak to him:1 He has virtually no accent and does not speak his first language often.2 He speaks it most when around members of his family, although the odd time when we're talking, he won't be able to find the right English word and will say it to me in French. He often jokes that he spells like a drunken sailor in English. The only time I really notice, though, is with his use of idioms, as he has no grasp whatsoever of English idioms.
This is mostly funny, as he will mix metaphors in ways that make no sense, or get an expression ever-so-slightly-wrong. Every once in a while, though, he'll use an expression so completely incorrectly that I'm completely flabbergasted by it. This actually happened yesterday, when he came home from work. He'd picked up a bathroom scale3 and wanted to buy something else, but, as he put it, one of the other workers had "snafu-ed" it from him.
"Pardon?" said I.
"She snafu-ed it from me," he replied.
"I don't understand what you mean," I said. "AT ALL."
"She snagged it before I got it," he said. "Snafu-ed."
"That's not what snafu-ed means," I said. "Not even close. It's an acronym for Situation Normal, All F---ed Up."
"No it isn't," he said. So I made him google it.
In other news, his place of employment is gearing up for Hallowe'en, which is the biggest event of the year for the store. The managers are expected to be in costume for the whole month of October, so Mat gets to wear several different Hallowe'en costumes. Last year, Capt. Mal was his default costume. Last night, he decided that this year, he's going to add Doctor Who to his repetoire.4 Awesome.
1 Though his name, Mathieu, might give you a clue.
2 This is likely because of me, since it is my second language and the older I get, the more I struggle with it.
3 Which does not work, unsurprisingly.
4 David Tennant's Doctor, to be precise.