I fart when I am near you

When I was visiting San Francisco this past week I noticed I was really gassy.  Being around lots of people, I tend to hold in more of my farts.  This is bad.  Because ultimately, all that gas HAS to go somewhere.  I get real gassy and when I try to poop, it turns out to be just gas.  Do you wipe up after passing a bunch of gas? I don't know.