A man took the concept of life imitating art to an extreme at an Austrian museum.

Vienna’s Leopold Museum is featuring an exhibition of pictures and sculptures portraying nude men through the ages. One of the patrons decided to join the club.

After stripping down to the buff, the man calmly sauntered through the exhibition. He finally put his clothes back on after a security guard asked him to do so.

A museum spokesman is adamant that it was not a publicitiy stunt. He described it as a “spontaneous act.” He says other visitors did not appear disturbed.

Since it opened on October 19th, the “Nude Men” exhibition has attracted more than 65,000 visitors. All but one have kept their clothes on.