I know you're joking, but I had an experience that was not funny at all.
This is anecdotal, but our gov't gives immigration carte blanche to f with foreigners entering the country on any whim they fancy, and this seems to have gotten worse over the last couple years...
But it's still possible there's an innocuous explanation for the delay of which we speak.
EDIT: not posting this to express any offense taken or asking for sympathy... just an opportunistic rant!