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.
Example: If the sonar reads that the fish are at a depth of 50 feet, troll your lure at 40 to 45 feet. Downriggers: Downriggers are a great tool for a BC angler when trolling deeper freshwater lakes such as Lake Okanagan. BC offers numerous lakes with depths of well over 200 feet.