Do idiots ever try to con you into buying junk at the mall?

Yesterday as usual I kept walking and ignoring this annoying moron.
He was so persistent I had to be a little nasty to get rid of him.
He told me this is going to be your day. I kept walking and said, I do not have time for you. He simply repeated himself. I said, go do your drugs some place else.
This jerk was a real loser and I am too busy. I shop for my family. I am not at the mall to socialize. My family was waiting for me at home. I am needed at home.
What would you say to such a jerk? I wanted him to bug off without being too nasty but; some people would have been threatening him or cursing.