Pontius Navigator, nobody has said anything about locks on checked baggage. I never lock my checked baggage, mainly because I never put anything in there worth stealing, unless someone has an underwear fetish. And as far as I know, no one "makes" you put locks on your checked bags.
Peter Fanelli, generic substitutes for Lipitor (which is a fairly benign drug) are readily available in Hungary, and my neighbor has previously successfully "smuggled" supplies to his father. I don't believe there is any legality issue here in that sense. I guess sometimes the generics aren't exactly the same as the original, hence the need to bring these.
Amusing aside -- apparently all this talk about drugs and such in this thread seems to be driving the Google ads at the bottom of this web page to show ads for "chronic constipation."