Years ago in another career I missed out on several graduate training places in Investment Banks at the final round after sailing through the first rounds of interviews. I wondered why I kept missing out.
In my youthful exuberence it didn't occur to me that the piss-up in the middle evening of the assessment weekend followed by an 8.00am aptitude test was all a part of the assessment. Of course I got completely leathered and did poorly the next morning...
Another lesson learned the hard way... It's been cocoa, biscuits, an early bed and successful interviews for me since then