I agree with pawsplay, as a fan of MMA... the whole shooting or tripping thing happens alot when a fighter has trained to do this, Brazilian jujitsu, wrestling, and other styles are based around training in tripping or knocking your opponent to the ground. I find it harder to believe that within fights that last as long as 4e's that there is only one "perfect" opportunity to try certain maneuvers. I personally don't find numerous trips or disarms anymore annoying than the goblin who shifts each and every time you miss him with an attack... wow, that goblin has got to be clever to pull this off every time you miss him, even after you've been fighting him for 3 or 4 rounds. Yeah, the fighter or paladin can minimize this, but no other class seems able to adapt at all to it. This is where my suspension of disbelief in trying something over and over again vs. perfect opportunity breaks down.