In a survey of heterosexual males, 95 % said they found female flight attendants and nurses to be incredibly sexy. But the survey didn't take into account reactions to these groups when not in their trademarked uniforms.
When not in uniform, the level of 'sexiness' drops dramatically - sometimes reaching into negative scoring.
"We've discovered that it's the uniform alone which makes these women hot", said Professor Gargamel of Smurf University, "without them they are usually just ugly, fat bitches with too much makeup and cellulite".
It was also noted that these groups become attractive to the other sex when they travel in groups of 10 or more.
"Their ugliness is further disguised by bigger groupings. It's harder to tell one from the other. Plus when they're pissed in a club with lots of strobe lighting it further adds to the illusion", added the randy Professor.
These statistics may explain why nurses and flight attendants make up such a large proportion of one-night stands amongst equally ugly, drunken men.