Has this happened to you?

[OrygunBasser]

OK, here is the senario:

You pull up to a spot, cast out a certain bait a couple times and wham, you catch a fish, you think that you must have them dialed in so you keep using the same bait for a hundred yards down the bank. You catch nothing more on that bait so you pick up another rod with something else entirely different and make a couple casts and sure enough, wham, you catch another fish only to go on down the bank another hundred or so yards with not another taker. This happens throughtout the day for the rest of the day and you can't put together any pattern.

Now, we are not on a pond where the fish may spook because of the fight of the first fish nor get tired of seeing that same bait. We are on a big lake with 100 or more yards between changing lures.

Why would this happen? I have had it happen more often than I want to admit to.