"...and who are those fellas up there?" - Al Gore, during a tour of Monticello, pointing to busts of George Washington, John Adams, Thomas Jefferson, et. al.
Yep. Not long after their first inauguration. Although, now that I think of it, it may have been Mt. Vernon. I'll see if I can dig it up.
People equate malapropism with incompetence. Quayle may have said silly or odd things at times but if you actually look at his duties as VP and his accomplishments, he was pretty good. Similar sentiment toward Al Gore, who's even more stupid in his public statements.