cowboyneal:I failed to mention the non sequitur of the how and why someone would or could "make their paycheck add up."
It's not a non-sequitur. It's an example, and a real-life one at that. If you'll read my post, you'll see that I said "the paycheck," not "their paycheck." For several months I had to deal with an accounting department that could not make my paycheck "add up." It did not equal the proper total. This reflected problems in several areas: somebody's inability to understand my contract in that they omitted a source of income, somebody else's failure to add billable hours properly, and the second person's further inability to compute a percentage. It didn't "add up" to the correct total. It also "didn't add up" in the sense of a common colloquialism meaning that something was suspiciously incorrect.
I accept that you and many may disagree with what I think is sloppy usage. Are you truly unable to grasp that what I meant was that when others use certain forms that I think of as sloppy, I tend to wonder if they're sloppy in areas other than language?