Ok, just reading the title of the patent should be enough:
Penis locking and lacerating vaginal insert
Via Mahmood, who "helpfully" includes illustrations of said device. Yeeeikes!
well, i think one would notice it during foreplay and happily remove it. if they didn't, well, guess they may have Darwined themselves...
Posted by: ron on October 13, 2004 07:07 PMDepends... advanced models may be difficult to distinguish until they snap shut (either on a finger or on a penis, either way wouldn't be pleasant), and some women may forget to remove these snatch-traps before intercourse (especially if drunk).
Of course, for guys who have something to do with their lives, fear of a lawsuit or years of child support payments should be enough.