Carbon Dating

Signs that I'm getting old:

+ None of the children on the pediatric service recognize my ET impersonation
+ ...even after I explain who I'm trying to impersonate
+ "Where The Streets Have No Name" by U2 is played on classic rock stations
+ Staying up after midnight takes more effort than I remember
+ The kids down the street are playing their music too loud
+ Although I haven't used my cassette tapes in years, I hang onto them for sentimental reasons