Mike, I am sure you did put the post it w/a rubber band around it. I am also sure you'll find it on the floor, right after you dump the powder.
Actually I am glad to see you decided not to use the powder. A lot of new reloaders come here reading (Lurking) and trying to learn. One look at your post count and they probably think to themselves, well, he must know what he is talking about.
And I'll agree with you on another aspect: The cost of powder verses the cost of a new gun. Why take a chance?