It requires some multitasking: listening to the conversation you are taking part in and thinking about an appropriate answer. It can be difficult. To me, it's similar to learning languages: takes a lot of practice. By all means: strike back, put up the fight. You don't have to be arrogant, just make sure you did your part. Offer positive things on the surface (literal meaning), and say things that have the 'push back the Lion in it's cave' effect. Some bold attitude is welcome on your side, otherwise it can be very tough to manage. Some people just can't be handled otherwise. Although in my experience they are only the minority, they don't understand other language. You can also think of it as puppies playing in a garden (as someone suggested here on WP).
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Another non-English speaking - DX'd at age 38
"Aut viam inveniam aut faciam." (Hannibal) - Latin for "I'll either find a way or make one."