Craig... you'll find each make of bike differs as the gearing, torque and tuning of the specific engine has a lot to do with how much power is available at idle. Our ninjettes are more biased towards high rpm HP and w/ only 250cc's, there not much power to spread around.
I have a trials bike (tuned for low speed riding w/ tons of torque) that I've started by accident while it was still in gear w/o pulling in the clutch. It started
right up and promptly fell over.