And because I know that it's sometimes hard to reliably detect the presence/absence of sarcasm in the written word, I'll clarify and say that I'm not being sarcastic: Jim Vieira's visit to my Forbidden Archaeology class was legitimately fun.
A couple of the students in Forbidden Archaeology collected video of Vieira (totalling about six hours, including both class sessions, a one-on-one interview with him, and Vieira and me discussing various issues related to giants) for their final project. They've got control of all that footage for now. It will be really interesting to see what they produce from it. Vieira and I agreed that we both need to give their project the green light before it will be made public. I'll keep you posted on that.
In the meantime, here's a short clip of Vieira in class yesterday. I don't remember the exact question to which he was responding, but his answer speaks for itself.