This is question for dms running 4E games. How do you rule powers when they don't make sense?
I've noticed a lot of situations in 4E play where a player wants to use a power, but the way the power is described doesn't make any in game sense that it would actually work in the situation the player is trying to use the power in.
Here's a classic example: The fighter "come and get it" power lets the fighter pull nearby enemies to him, so that he can take a big sweeping swing that will hit them all. It's a cool power, and makes a lot of sense in many situations (like when he's in a fight with a bunch of savage orcs), but what about when he manages to get near an enemy wizard with a very high intelligence who is smart enough to know that he doesn't want to be anywhere near a fighter? Why would an enemy like that suddenly run up to the fighter so that the guy can take a swing at him?
Another Example: There's a couple of rogue powers that let a rogue temporarily blind a foe by apparently slashing the foe and thus causing blood to get in his enemy's eyes. Well what happens when the rogue tries to use such a power on a creature like an air elemental that has no eyes and doesn't bleed?
It seems to me like the dm has two options. Either he nerfs the power and says that the power doesn't work in that situation (or more fairly says that it can't be used ahead before hand so that the player can go with something different) or he lets it work but has to try to come up with some ridiculous justification for why it would have functioned under such circumstances.
So far I've done a bit of both of these. I'll try to justify a power most of the time, attempting to come up with (often with the players help) some reason why it would work, but there have been times where it just seemed too ridiculous and I've told the player that this power just can't work in the given situation. The players have generally accepted such decisions, but usually there is some grumbling.
I find that there is definitely a sense of entitlement among many players that powers should work no matter what as long as the player succeeds with whatever attack roll is needed.
I'm interested to know how other dms have dealt with such situations and how players feel about a dm reserving the right to nerf there powers if he thinks it doesn't make sense in a given situation.