Who is more spiteful, men or women?

[url=http://www.vice.com/read/a-revenge-for-hire-business-exists-in-san-francisco?utm_source=vicefbus]After reading this article[/url] I was a bit surprised to see that women made up most of the business accepted by the company mentioned. For me, it brought up an interesting thought; are women more spiteful than men? Now everyone can hold grudges, but to going to the point of hiring a company to get back at an ex-lover seems a bit drastic. Personally, I'm not sure that women would be more spiteful than men. I think it's more a matter of how each sex goes about handling the issue and women might be quicker to enlist help. Either way, revenge of this sort has bad written all over it for me and I'd rather forgive and forget. Best to stay away from anything that might cause a situation later on.