Fart-Quaker

Every time you do a skill check, attack roll, or saving throw the DM will also roll a d20. If they ever get a 1 the player will unleash a tremendous, terrible fart. The very earth itself around them trembles and tremors from the sound, force, and STENCH! Everyone within a radius of 60 feet of the player must make a DC 15 constitustion saving throw or take 2d6 damage and fall prone.