Evidently, before the the July 3rd show of 1999, he was hanging out in the lot near "Lake" Lakewood, which is really just a pond of run-off water from the Atlanta sewer system. Out of nowhere, someone who'd eaten way too much acid took off for the lake and jumped in. 

As everybody stared and laughed for a short bit of time, it became obvious that the kid was seriously struggling to swim and breath. So, Bill, a former military man skilled in CPR, took off and rescued the kid from the water and had him breathing by the time the paramedics showed up. The story does not end there.

Because this was deemed an "incident" by the Atlanta police, all of Bill's personal info was taken at that time and the band caught wind of the story. Well, the following day, via the info from the police, Phish invited him backstage for the 4th, an invitation that Bill was more than happy to accept. 

While backstage, Trey in particular treated him like a hero.  He was more than happy to sit with Bill and tell him some odd stories from his life on the road as a rock and roll badass. This was one of them:

A few years back (I think in New Jersey), not unlike Bill's experience, some kid (we'll call this one Jimmy) had eaten waaay too much acid. Only, Jimmy didn't jump in a lake, he decided to call his mother from a pay phone in the parking lot. While on the phone, he relayed the basic information that he was: 1. Really fucked up, and 2. That he was calling from a pay phone in the parking lot of a Phish show.  

After being disconnected, his mother called back to the venue, completely outraged and worried, only to be forwarded to about five different phones until she somehow ended up on Phish's emergency cell phone.  According to the account I heard, this phone had not rung in quite some time. 

Trey happened to be, among other things, amused and near the phone. He picked it up and, after calming Jimmy's mother down enough to get the necessary info, was on a security golfcart and out on a manhunt. 

He navigated the parking lot until finding the right set of pay phones, where Jimmy was still sprawled out, being tended to by friends at this point. Without missing a beat, Trey lept from the golfcart and bolted towards the fallen fan, announcing, "Jimmy, your mother's on the phone, and she's worried sick about you!"

Can you imagine? And for the record, Bill has a lifetime backstage pass anytime Phish is in Atlanta, which will hopefully be sometime very soon.

 - Mark