ENTPs are the types that will bang your girlfriend, get it on videotape, and play it on a big screen TV infront of your co-workers when you least expect it. Or even somehow arrange to have it shown at the local bar they know youll be at with your buddies, just to humiliate you. What could possibly be worst than that.
Socionics has a good blurb on them:
ENTps are far from angels. Don't be fooled by their clumsiness, spaced-out behaviour and over-friendliness. Behind it all is a very cold rational mind
If you let an ENTp openly know that you do not like them, you will probably earn yourself the title of enemy #1. And beware to have them as an enemy. ENTps are great masters of tricks and deceits, often more than ESTps, and what's more they do it in a very skilful manner. ENTps are masters of arrangement and sharp psychoanalysts, able to foresee exactly how others can react to a situation. They can turn the whole world against you, if you are not careful. ENTps also have the unique ability to make a deal with their conscience. They can successfully justify almost any wrong doing, thus ensuring that they will sleep well at night.
they are quick and shrewd in day to day matters, taking advantage of every opportunity that arises. Because of this others may consider them to be crafty or shifty.
The other main peculiarity of ENTps behaviour is the ability to mobilise in extreme conditions. If somebody puts pressure on them they immediately counterattack, often with more than equal force.
One more peculiarity is the element of chaos and destruction that ENTps bring to every field of their activity. This is especially noticeable in well established institutions where strong discipline is commonplace. However, they implement this chaotic element creatively, generating reform from the destruction. Because of this quality ENTps often become leaders.
Dont get me wrong. I know ENTJs can be bulldozers. But if I had a choice, I'd rather take an earfull of ENTJ insults than what some ENTPs might be capable of.