"I don't know how a performer could go on the thing, myself," Shaffer said. "If I were going to be on it and I heard this _ that Jerry isn't even going to be there _ I would not go on it. I think it's insane."
MDA asks USA for $1 more in telethon without Lewis →
Shaffer told Letterman he had "bomb-sniffing dogs" in Las Vegas trying to find out what went wrong between Lewis and the MDA.