..with each social interaction you experience each party always holds their two full cups.

One with a very highly flame-able fuel & the other with water.

Each party is usually very eager & willing to share their cup’s contents with you.

Each time you listen to &/or promote falsehoods, gossip, bad-mouth, back-bite, abuse &/or disrespect another in their absence you are using your cup filled with fuel to spread that fire.

Lincoln

..which of your cups is emptying fastest?

..Each time you avoid, stop &/or protect someone or yourself from ill-conversation which waste your energies you are using your cup filled with water.