No problem. Between the masses of knowledge I seem to store (I never seem to forget useless factoids and trivia) from my dad and a section on crack propagation in one of my Uni classes, I know WAAAAAAYY to much on cracks. You want to talk crazy crack sh*t, try figuring out crack and de-lam propagation in carbon fiber
Edit: Random: I notice you're 'blind' like some of us. I never use to to a lot of night driving, but recently I've noticed that I can't drive at night with glasses, I have to be wearing contacts, because every light source halo's and flares like crazy. Ever notice the problem or do my glasses need a really good cleaning?