I haven't posted in a long time, but now that Scott Adams came up again I have to share some secret shame. As a much younger man I really enjoyed Dilbert, enough to have bought all the books - including the 10 year anniversary book that Scott Adams left a "commentary" on most of the strips in. I've long since lost it, but he explains "the reason Dilbert's tie curls up" in it, and it's too dumb to not share.
One of the brothers originally jokes (I think it's Travis) that he has a "tie boner" and that's... actually right, in a roundabout way. Apparently Adams got a ton of mail asking if Dilbert is ever going to "get lucky" (his words) because they saw him as a representation of their own futility, so if he won, in a way the "average guy" would win, too.
The exact specifics escape me, but essentially Adams said that if Dilbert ever got laid by his girlfriend, he'd draw his tie flat in a strip. He did (here: http://dilbert.com/dyn/str_strip/000000 ... p.zoom.gif
) in what I seem to remember he said was "left up to the reader." So basically, as absurd as the goofs are, it's even sillier than that.
This has been more than you wanted to know or I wanted to say about Scott Adams. Let's go back to being friends.