Well, yes, beer does go bad, but exactly when depends on your definition of bad (and possibly how many you've already had!). So, does beer expire... when properly stored, the shelf life of beer past its best before date is approximately: Although all food and drink lasts for a shorter period of time if they are not stored properly, proper storage extends the shelf life of beer beyond its best by date.
If disturbed by a blockhead attacking or approaching too close, the troll will pursue the interloper. It is almost as capable of climbing (including ladders), jumping, swimming, and otherwise navigating a cave as any blockhead, although it moves slower, allowing most blockheads to escape.
Interestingly, one of the most productive lake trout trolling attractors is a set up that literally throws the kitchen sink at the fish. This rig starts with a 124mm diver set on the No. 1 setting. Next a 6 or 8 inch Fish Flash is attached directly to the back of the diver with a heavy duty snap.