We were are the Museum of Science's special Raptile exhibit having fun. G was running from one station to another looking at different displays. I saw him running towards something on the sidewall and then did a quick 180 degree turn, and laugh. "This one got me" he said. I looked -- he was running towards a big "in case of fire break glass" case, thinking it was another exhibit.
Now if we were at the museum of modern art then we have to double check.