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I had ants invasions years ago, just because I left some candies in the kitchen near the window, so they were able to arrive, I think giving them some yummy alternative nearby may solve the problem without mass-killing, but I also believe that talking them (even if they don't understand your language) may be an additional attempt to dissuade them :) call me crazy, I am!

Inventors, poets, artists, musicians are all crazy and who wants a world without them?