Okay... LARP. I'm involved in about 4 or 5 different systems. Most are fantasy-mediveal but a few are futristic (No star trek yet though...)
The worst ones, and I'm think White Wolf here, use complete non contact and ridiculous resolution systems (sicsors-paper-stone for example) as well as limited phys reping (i.e. someone wears a tag stating what they're wearing - naff)
The best are use limited contact (Foam and latex weapons) and simple resolution systems (Though a lot of refs are needed for gunfights), as well as what-you-see-is-what you get.
Overall, it's great fun. Nothing compares to running around in chainmail - or being terrified on a night adventure when a glowing monster (We have a very good props guy) comes round the corner and you know you're going to die....
Or runing in through a gunfight and actually feeling the terror. I'd say LARPing at it's best removes the 'step away' you usually have from the experience, and by dint of that, your character.
later days!
Mark
'Wish I could Help you....Wish I could tell you,
That I am real, I'm not something you invented,
That I'm not everything you want me to be.'
'And I am...Ageless. And I am....Invincible.'