Vasectomy really is the gift that keeps on giving. And apparently an increasing number of guys are responding to the terrible economy (which has disproportionately affected men) by getting snipped.
Vasectomy is a simple procedure where the vas deferens are cut, cauterized, or plugged up so that sperm doesn't get into seminal fluid (read: "cum") and pregnancy doesn't happen. According to Managing Contraception, the failure rate is just .1%, which means that of 1,000 couples depending on vasectomy to prevent pregnancy, only one will get pregnant over the course of one year. Pretty good odds.
In the United States, vasectomy is not routinely intended as a reversible, long term method of birth control for men but in other countries (especially China) the procedure is increasingly seen as semi-permanent. Anyone who's driven on 290 between Houston and Austin has seen the giant billboards that shout "VASECTOMY REVERSAL."
In the States we're not onboard with the idea that vasectomy can be performed with the intent that it will later be reversed, but success rates continue to rise and eventually, the Big V will probably be used routinely for long term birth control for guys. I, for one, am happy to shift the burden of pregnancy prevention to guys. And really, it only hurts for a minute.