As I read one blog and realized that he is also employed in the same company I quickly realized that it is a universal phenomenon for new experienced hires who are thrown with those rowdy freshies. To be subconsciously irritated to the noise of the "young" ones [aged 23 and below] because it makes you feel nostalgic about the days of long ago when you were the ones making all the noises and jostling about. And now it's your turn to act as the adult, to be the party-pooper and to act with the utmost decorum. To hide what is not accepted. I am a lousy actor but somehow I have to get through each day with myself intact. So at the end of the day, I can live my real life, inside my head where everything is what it's supposed to be.