A single spark can start a prairie fire.

Joking is not nonsense, it's slang, not breaking the rules but not very good.

When people ask you how much you bought, it's nonsense for you to increase the price, and it's not nonsense for others to ask you how much you sold.

1 1: 27 The problem is that there is no cheating heart, but the way of speaking is exaggerated. Strictly speaking, it is not a violation of the precepts, mainly because you have a deceptive heart.

The same as 3, exaggerated and imprecise dialogue, not derailed or broken.

Generally speaking, it is good to have a mind of keeping precepts. Because of the precepts, it will be helpful to be slow and careful. Enjoy your virtue of keeping the precepts, Sato Sato.