Is it really horrible for a teen to TRY smoking and hate it?

I know it's bad, but is it absolutely terrible for a teenager (15,16,17) to try one puff? Not even a whole cig, just one little inhale, and then start choking, and never want to do it again? It's a bad choice either way, but is it a little better if then teen knows how weird it felt and doesn't want to take part in it ever again?