OT'ish:
If you let one rip, do those around you also become unclean, and what's the policy on owning up to it?
Do you get punished if you say, perhaps even with pride, "That one was me!"?
The official Islamic policy on farting is that it haraam to laugh at farts.
Producing wind means your wuddu is broken, but provided you dont leave any splatter on your guests, then they remain clean. However if you are planning to pray, you should replace your underwear if you produce a wet one.
My advice is to do a reverse fart (suck it back into your system), and then let it all out after prayers.