2nd call from this number in two days, doesn't leave a message.  Blocked now.

I have gotten two calls from this on my cell phone and one on my home phone in the last three days.  No message left on any of them.  Home phone caller ID says "unknown name."
What I most want is to know who it is, before I block it.

2 calls in the last two days.  ~7pm and 8pm.  No voicemail left.  Blocked now.

Asked me to participate in a brief 2 question survey. "Do you believe we should stop the use of all gas and oil?" I cursed a bit and told her to burn herself with gas and oil.

Particularly rude associate responds after accidentally answering phone.  Started right in with ~'do you think we should abandon fossil fuels'; I then cut him off and asked who is this?  He would not identify himself, or the company, only that it is a short 2 question survey, and then back to the question of fossil fuels.  His attitude along with trying to bully a response from me nearly got him an ear full, but I was busy at the time, so I told him to take me off his list and hung up.  To my non surprise, I received another call shortly after from another survey company, (did not answer), but already too late because I answered the first call.  Luckily I have a phone capable of blocking #'s, so if this persists...THE NUMBER WILL BE BLOCKED!