Hubby is V-safe and we have put it in our ads at times. We do however always play with condoms. The reason we have stated in our ad that he is V-safe is just to let everyone know if it ever came to the situation where a condom slipped off there's no worry about getting pregnant.
Actually though the whole reason the hubby got his vasectomy is because this once happened to us... a condom broke and the lady he was with at the time totally freaked out... he felt terrible.