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Scared Sausage is an in-game item that can be bought from a Shop or can be found in a Crate. Most Items modify the Stats of the player, and some of them provide additional effects.
Scared Sausage
Scared Sausage gives any weapon hit, any projectile hit, and any hit by an Engineering structure a 25% chance to inflict burn.
The burn effect from Scared Sausage does 1 + (100%) damage each second, for up to 3 seconds.
Each additional Scared Sausage increases the chance to inflict burn by another 25%. It is possible to reach a 100% chance by holding 4 Scared Sausages (which is the count limit for this item).
Scared Sausage passively adds 1 to the burn damage of any weapons that inflict burn (e.g 
Flamethrower), and to other Scared Sausages (if multiple are held). Since Scared Sausage costs more than 1 Elemental Damage, it is not economical to buy the item only to increase the burn damage of weapons.
Effects that can inflict burn
- Spawned projectiles from
Alien Eyes,
Baby with a Beard, 
Lightning Shiv, 
Cacti Club and other weapons can inflict burn. (This was not the case, but was changed in patch 1.0.1.3.) - The Explosion from
Bull or 
Landmines can inflict burn, as well as explosions from 
Rocket Launcher and other weapons. - All Engineering structures can inflict burn, via direct hit as well as explosion hit (
Turret, 
Laser Turret, 
Explosive Turret, and 
Tyler).
Effects that can not inflict burn
Baby Elephant, 
Cyberball, or 
Riposte can not inflict burn.- The Explosion from items such as
Spicy Sauce or 
Rip and Tear can not inflict burn.
Incendiary Turrets
Incendiary Turret inflicts a separate type of burn with blue fire. The damage of the turret can be increased by 1 for each Scared Sausage you have, but it cannot inflict regular burn. Snakes do spread the blue fire of the turret.