We went camping this weekend and had a delightful time with friends spent in the lovely wilderness, cooking over an open fire and going for swims in the pleasant watering hole.
In our pristine surroundings, the conversations tended to lean toward grosser than gross jokes, masturbation and bodily functions.
We decided that the reason why men take 45 minutes to take a crap versus women taking less than 45 seconds was because men need to distance themselves from the process. There is concentration involved, but more than that is the needed distraction from the actual act, thus all the required reading material. Women can get the job done in no time at all, because we are just generally more efficient and evolved species all around.