People who paint such a broad stroke, "I don't believe in conspiracy theories" really can't think.
Even if there really WAS a consipracy, you wouldn't believe in it?
Do you, against the evidence of your senses, not believe there is evil in the world?
Or do you think that evil is always small, random, foolish, short-sighted, or unorganized? Don't you think often times two or more men get together to co-ordinate their evil for greater benefit to themselves?
If you can plan ahead for something like a vacation, a relocation, a job transfer, a wedding -- why can't evil people plan ahead as well?
See, it's all very logical. But to be convinced by logic, your mind has to function properly.
As I said, you really have to "not think" to have a blanket disbelief of all "conspiracy theories".