I asked a buddy what was going on with this 'Sheldon reference' (It is kind of a common theme of joking around that I don't pick up on some "pop / comedy culture references" .....that I suspected this could be)
My buddy said "that's probably from Big Bang Theory.. ehrm.. there is a Sheldon there. I don't watch it enough to figure out why this is funny though." Oh! first clue!
So, I turned to google. Maybe something with UPS?
Then I found myself finding references to episode transcripts where anything -UPS was mentioned.. "grown-ups" "sit-ups" etc.. super many examples.... >.<
Until I finally found that Sheldon had encounterd an UPS-guy and for some reason got hit by a box in his head........ ?
Even though I'm used to either not getting <referential jokes> from stuff I don't watch, this ...was a bit further off than anticipated. Or was it? Never know what to expect x)
So I continued my quest to find this awesome list of to :
http://bigbangtheory.wikia.com/wiki/Running_Gags
Here I found a boatload of descriptions of this guy Sheldon that.. rings well too true regarding the neighbors on ..the 4th floor :p ...but nothing really relating to UPS, packages, deliveries or anything I could figure out being relevant,...
Oh well, I asked a second buddy to perhaps shed some additional light on this mystery:
"Ah, that has to be from Big Bang Theory - that Sheldon lives on the 4th floor, where the elevator never works"
.....damn culture references, I hate you x)
Cheers / Dice