Yes, that\'s a good thing. As I already proposed on racing topics, this should be in. Also, as Adeli has said, it fear is a good source for adrenaline rushes as well.
So it should be available to
- flee
- fight if cornered
- push yourself beyond your limits to accomplish this extremely important task (like in a race, or lifting the boulder off your child, or whatever)
Obviously, dependant on how long you used it and how draining the things you did while using it, you\'d need to rest very long afterwards.
Also, after it has worn off is when your precision and agility dwindle. Your body shakes, etc..
If you just use it to run faster for a couple of seconds it\'d be not that bad, but if you have been chased by the MOB for max. duration, while wearinh heavy armor and also carrying your unconcious buddy, then you\'re going to take a good long nap afterwards...
Also, just as IRL, this can be triggered repeatedly, but it\'s working duration will decrese quickly (like 30 seconds first time, 20 second time, 10 third time, 5 fourth time and 2 sixth time or something). Also, the required resting time will of course accumulate.
Furthermore, pushing oneself beyond one\'s limits usually inflicts physical damage.