What?
Are you trying to delete your post because it was answered, and doesn't need to be up anymore?
Are you trying to delete the other person's post because you disagree with them?
Are you trying to delete your post because you are embarrased and want to commit internet seppuku?
And how does a bad response enter into it?
You can BLOCK any member that you get 'smart' responses from. This won't remove their existing posts in a thread - but it will prevent them from posting further comments in that thread - or in any of your future threads.
MY HOME -> Account -> Privacy -> BLOCKED MEMBERS.
(Also, look at CONTENT SETTINGS).
And if it was really offensive you could complain to the moderators.
Hi: I got a smart answer to a post. Is there a way to delete that post? I have tried to delete the smart answer, but delete key has no effect.