It's kind of funny but there's really something you can do to help here. The only question is what...
I'll share my method:
When someone I know wants to start riding, I can't help but encourage it. I love motorcycles and motorcycling more than any other earthly material passion. However, once all the encouragement has settled in, I opt for a dose of realism to tune or slow someone's roll, if necessary.
My favorite technique is to go through every piece of protective equipment I have, describe its design and the nature of the injury it's intended to prevent. This usually involves visual descriptions such as "see how this wrist bends? a gauntlet can help brace..." or "the armored side of the boot helps protect your ankle from being crushed, shattered and torn apart under the bike."
This serves two functions:
1. ATGATT
2. A healthy respect for what this machine can do to the squishy human body with almost no provocation.
The same technique can be applied to the machine:
"The R1 has an incredible amount of power. A common occurrence for new riders is a whiskey throttle. A whiskey throttle on a smaller, lighter, slower bike is less dangerous than on an R1, which will rend your squishy human body with almost no provocation."
Then, watch these:
http://www.youtube.com/watch?v=LqndJr1zOpk
http://www.youtube.com/watch?v=Q9zNUPDmnz4
http://www.youtube.com/watch?v=cmHK0XFCPVI