Yep.
WRT drinking, that's definitely a holdover from the military pilot culture...it's endemic. There isn't a USAF flying squadron in the world that doesn't have a well-stocked bar and a pool table (used to play 'crud'), and it's a deeply embedded tradition to pop a cold one (or two, or three...) after each flight, and then it's time to head over to the O-Club or downtown...you get the idea. When it comes to flying into space, though, Stu's got it absolutely right...put down the bloody bottle at
least a few days beforehand, or take off that spacesuit and let
me fly the goddam thing!!!
As far as 'sabotage'...seen it before also on military planes. Some truly pathetic individuals either derive a perverse satisfaction out of causing problems, or do things like this so that they can magically find the problem that's stumped others & thereby become The Hero...saw this latter phenomenon once, and needless to say the person responsible was finally caught, court-martialed and convicted, rightly so.
The sketchy circumstances known of the Shuttle case makes me think it's an example of the former, though. Apparently, the cut wires would not have posed a danger to flight (probably because FCCs are by their very nature extremely redundant in design), but it sure could have caused at least one hell of a lot of angst for the on-site maintainers, or even in the worst case a launch delay or abort.
EDIT: More recent reports seem to indicate that this was in fact an ISS FCC...if so, even more puzzling. Sick people as described seem to crave immediate gratification; seems a lot more sinister to mess with an ISS component, esp. given the recent control difficulties. Makes me wonder where NASA is getting these things fixed..."Joe's Deli & Critical Avionics"?