I can empathize with that. Where I come from it's extremely common to refer to your sons as boys e.g. 'hey how are you boys doing?' = I'm asking you how your two sons are ... So every time I translate figlio, I get into trouble because inevitably my brain translates figlio to son, but my mouth splurts out boy instead. Of course only son is correct, so I either have to break the habit somehow, or else continue to lose a heart.