You know those car warranty robocallers calling your cellphone? Of course you do, you hate them. This how reader Eyebrow McGee deals with them, and gets to have a little laugh at the same time:
Save the number (I save it as “Z Douche” so it sorts to the bottom of my contacts list and makes me laugh) and assign it a silent ringtone. Similar calls from other numbers can be assigned as Z Douche’s second cell phone or landline or whatever. Typically they call from a handful of numbers repeatedly.
It doesn’t solve the problem, but it makes it much less annoying and doesn’t burn your minutes.