Only have a cell phone now, all junk calls get added to my contact list as ZJunk, ZZjunk, etc. Then those numbers are blocked. I use the Z's to keep them all together and at the bottom, so I don't have to scroll them to find a legit number. What really annoys me is the same call will come from a different number than the one you blocked. UGGH!
Might be fun to answer "do you want to go to jail?" with, "why, do you need someone to visit you there?"