"Washing a car to make vinegar, grass poisons 8 yuan". What jokes did the uneducated banner make?

Wash the car and buy some vinegar to go home.

[Grass poison 8 yuan/kg], so cheap, I don't know whether euthanasia is buried or not?

There are also jokes about the same typo:

I almost died when I saw the pond [no fishing, offenders pay]. [Selling scrolls with coffin shed], buddy, you switch these two things, and I believe them for the time being. There is a fake dog sculpture in the community park with a lovely sign [please don't be me, I'm shy]. You're afraid of your sister! I really want to do it, but I can't find it! There is a self-service hot pot restaurant, and one of the cabinets says "self-service sprinkler". Are you afraid of not wasting enough?