Picked up the phone, said who the F##K are you, quit calling here, and hung up.

Called 4 times in the past hour ... Imma skin this [***] alive if I find out who it is

Called and left no message.  I don't know anyone from this area.  Based on these other messages, it appears to be a telemarketer or something.

This supposed Novato, CA number called twice in the past 2 days.  The first time I was sleeping so was unaware of the call.  It registered on the caller id but left no message.  It called again today, and I warily picked up.  This very creepy, robotic-mechanical-fake voice said it was taking a survey, the first question being what was my age.  I'm very happy to participate in legitimate polls, surveys, as well as the 10-year US Census, because that information is useful to local and national planners and other legitimate agencies/political parties/etc.  But my strong sense was this whatever-it-was was up to no good.  There's an old saying;  "When in doubt, DON'T".  The tried-&-true maxim was whispering in my ear big-time with this one.  Don't you fall for it either!

3 times in 5 hours.  Make it STOP!