Don't put ice in your single malt, rubes
I'll generally allow a single ice cube to accompany 2 fingers of uisce. A little bit of water helps bring out the flavor.
And the correct answer everyone, is Basil Hayden
Ice is acceptable if enjoying outdoors on a warm night.
I like to have a glass of water on the side, I just can't bring myself to add water to a single malt.
You realize that single malt scotch is barreled at a higher strength than what comes in the bottle, and they pour water into the mixture before bottling and capping and selling to you for big $$$ so you can talk about how much better it is "straight" than with any additional water.
But to each his own, as long as you're drinking whiskey, you're doing it right.