VIENNA (December 11, 2012P)--A man took the concept of life imitating art to an extreme when he stripped at an exhibition of pictures and sculptures portraying nude men through the ages, an Austrian museum said.

After taking his clothes off, the man calmly sauntered through the exhibition, dressing again only after a security guard asked him to do so, Vienna's Leopold Museum said.

Museum spokesman Klaus Pokorny said Tuesday that the museum had nothing to do with Saturday's incident, describing it as a "spontaneous act."

He said other visitors did not appear disturbed.

He said that since its Oct. 19 opening, the "Nude Men" exhibition had attracted more than 65,000 visitors, all of them dressed except for one.