Was this spring of 1986? If so, I almost saw one of those shows but my ticket I bought from the wrong person outside of the arena was counterfeit. I had eaten my shrooms on the SEPTA heading down from campus. I didn't much care that I missed the show until I found out the next day I missed my favorite Dead song, Box of Rain. I'm not a Dead Head so I had no idea what a rarity that was or that Phil Lesh sings it.