Oddity's Law

If one or more specific instances of a class of items or persons have a negative quality, all items or persons of that class must be considered to have that same negative quality.

1) There are some bad salespeople; therefore, all salespeople are bad.

2) I once owned a Honda that broke down; therefore, all Hondas are junk.

3) A black person once stole from me; therefore, all black people are thieves.

4) Throwing out the baby with the bath water.