I should note in starting off that my initial reaction to things that are good and pure is to destroy, so what follows may not come as a surprise if you know me.  My team-killing tendencies are now well-established, and have been for most of my many years of gaming.  This may have started back when I played co-op in Chip 'N Dale: Rescue Rangers on the original NES (an underrated gem).  There, I found the most satisfying part of the game to be arranging new ways for my partner to die.  Whether that was by way of stunning him while an enemy was attacking or simply picking him up and hurling us both off the edge, I found this more fun than the as-designed gameplay mechanics.  My tendencies didn't dissipate as I got older.  Sometimes they lay dormant for a period of time, only later to surface violently and ruin an otherwise productive evening.  I recall one time in high school playing Doom 2 cooperatively, and not being able to get through the first level because I couldn't avoid chain-sawing my teammate in the back as soon as he turned to fight enemies.  When I initially got my Xbox360, I was banned from so many games of Perfect Dark Zero that I lost count.  More recently, I have tried to do this when possible in Borderlands.  Absent friendly fire, this is difficult but not impossible.  My preferred method has been to get a passenger in my car, and then vault us both over the edge of some near-bottomless pit.  This becomes progressively more difficult to do each time, but as a result each time is more emotionally satisfying than the last.  I guess the long and the short of what I'm trying to say here is that I ruin things.
 
So when some of my friends started a Minecraft game (and for whatever reason, invited me along), I immediately started trying to think of way to destroy everything.  Of course, enemies and damage were initially turned off, so I couldn't just go straight after my teammates, lure monsters to them, or try to push them off a mountain.  What follows is an attempt to document my disease in pictures.     
 

wow.......

 Jerk
 
Absolutely love this.
 
But you're still a jerk. I don't think you're a jerk, but I think I should think that you are a jerk.

This is precisely how Minecraft is supposed to be played.

I laughed.

You redefine the term "friendly" in the phrase "friendly fire."

" This is precisely how Minecraft is supposed to be played. "

This game looks better every time I see someone's take on the game. I'm not sure if to pick this up at the weekend or to buy the Guild Wars complete box. I need suggestions. 

I'm his brother, I can testify to his team-killing behavior.  The worst part of it was in Doom 2 co-op your teammates always spawn in the same place. I think I just sat and watched in horror as Mark poured every last round of ammunition he had into our poor friend Tommy as he spawed over and over again.

I would love to get this game, but I would get bored with it quick.

That is precisely why I will never buy minecraft. I will never get into the whole creation aspect of it, all I would do for entertainment is jump into peoples servers and destroy their stuff. And that would be very dickish & mean, and it would probably get boring after a short while too.

" That is precisely why I will never buy minecraft. I will never get into the whole creation aspect of it, all I would do for entertainment is jump into peoples servers and destroy their stuff. And that would be very dickish & mean, and it would probably get boring after a short while too. "

this is the only way to have fun in minecraft

Lol, this server's on my home machine, and I can testify to his cliff-loving ways in Borderlands.  Also, this is specifically why I built the castle and air-walkway out of glass and stone. ;)

While I would call you a awful person for doing that, that was pretty entertaining seeing you destroy someone's property.

im kinda of scared to get into this game 
i kno w i would be addicted. 

Right.. so that's.. fun..?