I'm totally with you there on the tinfoil hat brigade. Politicians have enough trouble tying their own shoes, so forget about maintaining secret orders and hiding alien life.
Isaiah 8:12 “Do not call conspiracy
everything that these people call conspiracy
Also, stubborn opinions about doctrines that have still not been settled over the last 2000 years. How about, "Hmm, two well supported points of view, maybe one of them is right. However, seeing as it doesn't effect what I know God wants me to do with my life today, it doesn't really warrant fighting about". I'm sure things will happen according to the way God intends, no matter how much I try to convince Him my personal, pre/post/mid tribulation rapture or XYZ pet doctrine is a better idea.
Also, people talking about spiritual things that they have no experience in. The amount of times I've heard or been told by churchies that God does or doesn't do (insert obvious issues here) when I have seen it with my own eyes... Yeah. Kinda makes me wanna *roll eyes to facepalm* as Chiclet01 said.
(avoids mentioning points of contention so as not to case a riot in Jullianna's thread)
As for the opposite gender. I guess when a genuine compliment to a girl and is responded with a "What a creepy weirdo!". Jeez, the poor guy was just saying something nice to you, not trying to force you into marriage or stealing your firstborn. Be a lady about it and thank him graciously. Obviously this does not apply when a guy is actually being creepy. i.e. I like that you have child bearing hips, are you available for a meaningful relationship because I've stalked you for some time now. I will only get jealous if you talk to anyone other than me. But it's ok, because I'm totally emotionally maladjusted. Talk to me NOW. Give me ALL your attention. Why are you leaving? We're meant to be together, I had a dream about you! GOD WILLS IT!!!!!! Drats, she's gone... I wonder if her sister is here? She sure has purdy teeth. Or whatever it is that the guy creepers say. (I only hear from the girl creepers)
Um... I think I'll stop now before I start to rave like a cranky old man ranting on about everything and everyone everywhere.

*Thinks about rainbows and kittens*
Oh... it's 5:10am. That's why I'm cranky, I need a nap.