Modern computer transmitters usually have a "lock" function that locks the throttle. I use it religiously when moving my plane from the table to the taxiway. Its also preferable to have someone else carry the plane for you if you're not alone. Our club recently built the Meroke style tables at our new field, with the wing restraints, and they are getting universal good reviews. Using a strap on your transmitter will allow you to keep two hands on the plane from the rear. If the throttle gets away from you accidentally, just put the nose down to the ground. You may lose the prop, but its better than losing body parts.

Brad