Yeah, that’s me. Both of my brother’s can fix anything, but I piddle with something at home (laying tile, replacing a window, whatever), and if I can’t figure it out within 10 minutes, I give up.
Also, classical opera. I’ve read about and listened to it, but I can never quite appreciate it, and I know there’s something I must be missing.
I was going to say, Here’s my credit card. Go have fun. Same idea. 
About the only thing that I don’t want to know more about is upper-crust society, especially celebrity society. I Just. Don’t. CARE.
Everything else, from Aardvark Husbandry to Zoological Sciences, I’d love to know about, and tend to pursue semi-obsessively for short bursts as they catch my attention.
Politics and government. Fortunately for me I am dating a guy who is pre-law, and his undergrad degree is poly-sci.
Once I have acquired all of his knowledge I will set him free 
Philistine! How did you manage to land a wife?
Higher mathematics, electricity and electronics, world history, physics- there’s so much I want to know.
Women.
Marriage hasn’t helped…if anything, I’m regressing.
Absolutely all aspects of classical music. I can’t play an instrument, I can’t read music, I don’t have a clue what “keys” and “time signatures” are, and it’s no use trying to explain any of it to me - in five minutes I’d have forgotten it all. I know that some piano keys are white and some are black, but if there’s a logical reason for this I’m afraid it’s beyond me. There doesn’t seem to be a logical reason for *anything *in music.
Many of my friends are amateur musicians, by the way. One plays a bassoon in his local orchestra. A bassoon is a large wooden thing with a tube sticking out of the side. It makes some sort of noise when you blow into the tube. I mention this just to give you an idea of my level of knowledge of the subject.
The game of craps (please, don’t even try to teach me – my own son tried to teach me and ended up taking over $100 of my money. Hey, wait a minute!)
And sports of almost any kind. I simply do not understand the whole jock culture, yet it comprises an unnaturally large part of my life. Maybe I’ll explain that in a thread of my own some day – suffice it to say I provide the voice to some significant local sports teams, and I don’t know what the hell I’m talking about.
Religion. Never learned more than maybe a paragraph about any major religion, and I kind of tune it out whenever someone starts rambling on about who’s army killed whoever’s messiah, etc. I figured long ago that they can’t all be right, I have no way of telling which one (if any) is right, and that I did not have nearly the free time to learn about them all. Being a completist in nature it’s all or nothing, so I went with nothing. Just not a high priority.
Sports. I like playing many sports like Basketball, Racquetball, Tennis, bowling, etc. Just don’t like watching them and talking about them.
Computer games. I am drawn to them on occasion, but I am not good at them, don’t play them that much, and could never get the whole “doing it over and over again” to get past one level. If I can’t get it the first or second time, I tend to lose interest.
The Middle East
Every now and then I embark on a project to educate myself.
I don’t know whether to just accept failure or press on.