if you find out later it was made up. It is called respect. Something that is lacking here on DU among the supporters of both candidates.

No, this did not happen. Yes, it was right for Bernie to make a statement in case it did happen.

Easy peasy. I denounce that kind of behavior too, even when it doesn't happen or I'm later proven mistaken.

I denounce that type of behavior (again, from both of the more nasty on each side) here, and it doesn't seem to stop anyone.