My wife thought:
Men leave sex smell when masturbating, she was shocked that is not true.
She thought a flaccid penis is as sensitive as testicles, like if a penis was squeezed it would be intensely painful. She cannot believe a flaccid penis is almost like rubber and manipulation other than cuts or stabs is not painful. She freaks out if I twist around my flaccid penis and thinks it is the same as getting kicked in the testicles. 
1b) [Believed by heterosexuals of both genders:] That heterosexual relationships fail because of the inherent incomprehensibility of the other gender (“Chicks, man”; “Men!”). It is rarely considered that if this were true, gay and lesbian relationships would work far more often than heterosexual ones do.
2b) That it is more sexually/romantically productive to consider women as a whole, and attempt to decode them as an entire gender, than to get to know the individual human or humans in whom one is interested.
Um, what? 
does-not-compute
That women have one pair less of ribs.
That hot women actually poop.
It just doesn’t happen.
She just assumed it was so, why I haven’t a clue.
Well, if they don’t launder their spooge rags, they do. Smells like bleach after a few hours.
I read somewhere once speculating that the term “rib” actually referred to the penis bone, or baculum, found in most mammals but not in humans.
Based on another thread around here a while ago, it appears men’s claims about the severity and importance of “blue balls” may be somewhat overblown in the hope that women will erroneously believe some kind of orgasm is pretty much necessary for their boyfriend.
Hello, fellow mother of a teenage boy who has to occasionally have uncomfortable but hilarious conversations, how are you? 
Even if one is grievously suffering, I’m given to understand there are ways of obtaining an orgasm that don’t involve another person at all. I invite similarly afflicted persons to avail themselves of them.
I’ve heard that. But I’ve never tried it myself. Certainly not at least once a day when I was a teenager.
HA! Exactly! (Have you had the “Spooge isn’t entirely water soluble, dear, Mom’s slipping in the shower!” one? I haven’t. I made my husband tackle that one.)
A lot of women express a belief that men will sleep with any woman if they get the chance, which I find very disturbing on several levels. It’s not like I think I’m an amazing catch either. I mean, I do like myself quite a bit but I try very hard to not have nasty judgmental attitudes about women, like being too good for them or out of their league. It’s not a nice way of thinking about other people.
Actually that’s why I dislike it so much when people imply men will fuck anything they can. It’s bizarre to think I would need to justify or defend why I wouldn’t sleep with someone.
And for what it’s worth, I’m not saying I need some emotional connection to have sex with women. I mean on a superficial level I would never consider having sex with the vast majority of women I meet and I hate when women imply most guys are different.
Some women are surprised to discover that erections and sexual arousal aren’t necessarily correlated. An erection is not always an indication of arousal, nor is an erection necessary for arousal.
LOL, nope, he seems to have worked through that one on his own. I suspect this is because he spends much of the year at boarding school.
My husband had the “Hiding your icky used things behind the dresser does not make them disappear” conversation. I made my husband handle that one. Mine was the put your crusty hankies in the laundry yourself because I really don’t need to see them and neither does anybody else conversation.
But I can confirm the bleach smell from the lead up to that conversation. Ew.
Okay, since you sort of brought it up, I’ve been wondering if an erection feels good even if you don’t do anything with it, but I felt too stupid to ask men I know.
^Not in and of itself. The erection may produce stimulation as the penis presses against clothing, stuffed animals, other people, doorframes, or mountain boulders. It may also prompt or be affiliated with anticipation that is pleasurable, based on previous experiences.
It may also hurt or feel like nothing sometimes – especially if the erection is due to a full bladder instead of arousal.