What did the elephant say to the tourists? Caption competition

http://www.theguardian.com/theguardian/shortcuts/2014/jan/27/what-did-the-elephant-say-to-the-tourists-caption-competition

Version 0 of 1.

BEHIND YOU! As the tourists snapped away they failed to see the massive animal stealing the limelight. Perhaps he's just about to whisper a very gentle "Boo". What do you think?