And you realize finished college twenty years ago.
No, I was thinking more of some of those old timer’s pants where the waist comes almost up to your chest. And I should probably get me some braces while I’m at it, just to complete the effect.
I’d say “and make jokes about the Kaiser”, but I do that anyway, thanks to The Simpsons! 
When all the 20 ish people on public transport are overtly displaying that they are reading The Da Vinci Code to be with it. And you realise that you did the same thing in 1970 with Portnoys Complaint.
When you’re resigned to the fact that your feet are probably going to hurt first thing in the morning, until you’ve got them warmed up, now and for the rest of your life…
When you think back to the year you turned 28, because you were geeky enough to realize that the day-of-week of your birthday that year was the day you were born… and you realize that the hawt 18-year-olds were born that year…
When you remember the landlady’s toddler daughter from the place you were in lodgings “just a few years back” and figure that she’s getting on to her mid twenties and already old enough to be uncool with the 18yo’s…
When, on the other hand, the hawt 18-year-olds treat you with the respect due to someone their fathers’ age and more…
Happy birthday to me 
If it makes you feel better, I’m 19 and I laughed the first time I saw that…
And I know exactly what you’re talking about.