Haha, I'm not that bad! For my 30th birthday I plan to be so drunk that I don't wake up for it. That way it never happened.
But seriously, I'm a maths teacher and it's already headache inducing teaching classes with no interest in the subject and little aptitude for it. Doing that shit with a hangover would be unbearable. Friday is like the only night I could go out and then I might be recovered for Monday morning but all my lessons would be shit because I wouldn't have used the weekend to plan. Of course I could go out and not get absolutely shitfaced but where's the fun in that?!
Back in my late teens and up to my mid 20s I used to go out at least twice a week most weeks and sometimes 3-4 times, so I feel like I've already been there and done that and I'm over that lifestyle now.