Walk toward fresh air, away from confined areas, and upwind of smells. These are agents of mass terror not agent of mass destruction. That's not quite right. If you can smell the stuff, you're clearly ALREADY downwind of it and if you try to walk upwind of it directly, you'll be walking THROUGH it. The best plan would be to run, not walk, directly orthoganal to the direction of the wind until you CAN'T smell it, and then try to get upwind.
You're right. I hope everyone read all the comments -- until they got to yours. Thanks.
Sorry, phrased that wrong. I hope everyone reads your correction. Another reason for the correct information to get out to all...