Speedos at a nude beach

[Byron]

Must be something in the DNA of some cultures that the sight of the human body of all or particular genders carries such mixed feelings of shame/freedom/exhibitionism/enjoyment/admiration/condemnation/curiosity /et al - which result in some very strange behaviours.
As for the family jewels NJH I think it's the piranahs in rivers one has to worry about (though I guess that if you are about to be eaten alive by a bloody great white shark, being dressed or undressed matters little).