If a water tank has a small leak. It must be fixed immediately, otherwise all the water will leak out.

If a small criminal is not stopped, he/she will become a big criminal.

If corruption in one office is not stopped, it will spread to many offices.

If cheaters are not stopped, they will cheat millions.

If a small liar is not exposed, he/she will become a big liar.

When corruptors are not exposed, the whole society or country becomes corrupted.

Conclusion

You must not accept bullshit from anyone. 

STOP CORRUPTION

STOP DECEPTION

STOP CHEATERS

STOP LIARS

There is nothing more sinful than untruthfulness. Because of this, mother earth once said, ‘I can bear any heavy thing except a person who is a liar.’ ”
(Shrimad-Bhagavatam 8.20.4)