I find the scoring process fascinating when I scribe (not often to date).
I like being fed, and I like the chance to win a new toy for the dogs. I like getting to know people.
For me volunteering is a way to give back to a sport I get an awful lot from. I don't suffer from ring nerves much but if I did I think it would be a good way to control them.
Should every one always volunteer? Nope - there are times that you need to focus on the job at hand. But most days, most trials I don't see any reason not to do SOMETHING. Even if the something is emptying the garbage at the end of the day; that saves some other volunteer some work.
My whole attitude towards volunteering is perhaps best summed up by my all time favourite quote. Helen Keller said " I am only one, but I am still one. I cannot do everything, but still I can do something; and because I cannot do everything, I will not refuse to do something that I can do." Great eh?