Ringing my doorbell five times will not, in fact, make me answer the door any faster. Trying to open the door as I am making my somewhat gimpy way down the stairs will also not endear you to me.
It will, however, piss me off. Whereupon I will jerk open the door and snarl at you.

What did you want?
No. We don’t want/need any roofing.

What is is this?
No. I STILL do not want any roofing nor do I want a flier from your company that tells me all about the roofing you do.

Go. Away.

ETA

Alright — I personally don’t think this was a case of anything other than appallingly bad taste and/or stupid on the part of the guy. I don’t believe that there was anything dastardly going on.
That being said — I will stop by the Williamson Country Sheriff’s Office and let them know what happened. It’s not like they aren’t two blocks from my house.

Also, have called the company that was on the flier he left and talked to someone about “Ken”. (His name is on the flier)
A. They were indeed in our area, looking for work.
B. They will talk to him about his behavior but
C. Most likely it was just him trying to put the flier on the doorknob.