I am with you on the poisons; we had a very similar discussion about poisoning weeds in paving this afternoon. Where I disagree is that it is trivial, I am not sure how damaging borax is, but I do know I saw hardly any butterflies on my michaelmas daisy last autumn, and bees are having a hard time.

Argument, you need the ‘e’ on the end of ‘argue’ to get the right vowel sound out of the ‘u’, but the letter following the next consonant is a vowel in argument, so that does it.