Just out of random curiosity... Say you had some tiger shark or other marine animal that is getting too close to you, and for some (hypothetical) reason you can't get away...
Would honking a dive alert type horn deter them any or would the last sound I hear be a shark going "ha ha ha ha ha... that's adorable....[nom nom nom]"
Would honking a dive alert type horn deter them any or would the last sound I hear be a shark going "ha ha ha ha ha... that's adorable....[nom nom nom]"