The man waters the plants. The woman comes home five or six days later to an apartment full of dead plants. No one knows why this happens. Men love to talk politics, but often they forget to do political things such as voting. Women are very happy that another generation of Kennedy's is growing up and getting into politics because they will be able to campaign for them and cry on election night.
Men use restrooms for purely biological reasons.
Women use restrooms as social lounges. Men in a restroom will never speak a word to each other. Women who've never met will leave a restroom giggling together like old friends. Men prefer 30-40 seconds of foreplay. Men consider driving back to her place as part of the foreplay.