A particular custom is one which only affects the inhabitants of some particular district. To be good, a particular custom must possess these requisites: 1. It must have been used so long that the memory of man runneth not to the contrary. 2. It must have been continued. 3. It must have been peaceable. 4. It must be reasonable. 5. It must be certain. 6. It must be consistent with itself. 7. It must be consistent with other customs. 1 Bl. Com. 74, 79.