People who call me on the telephone for no good reason. It's my phone and I pay for it, not you
I signed up both lines for the "no-call" list but there is still a bunch that are exempt (or at least think they are ...
):
1) pollsters (questions are always loaded, or too personal)
2) political campaigns
3) credit card companies - "there's no problem with your account, but we want to offer you ......."
4) not-for-profits, the police support associations, etc ...
The only unsolicited callers I will even talk to are state F&G (calling license buyers about hunting success) and NWS (I'm on their spotter list) asking me how big the hail is, etc.
Yes, relatives and friends call sometimes but that is different.