To ask, at first sight, how you would interpret

[FelicityFlops]

"Do not sit, stand and jump."

Am I correct in thinking that the "and" should be replaced by "or" for this to make immediate sense?
It is a sign on the side of a swimming-pool, for context.

Should be or

It should be 'or' but I would still know what it meant, especially given the context.

What can you do if you find yourself in that area? The swimming pool context is not helping me understand, is it in the water or on the edge? All of the edge or just a small piece where there is a hazard?

I'd expect 'or' though.

Unless it means 'Do not sit. Do stand and jump' e.g. off a diving board.

I'd change it to 'or' and add a comma after 'stand'. Otherwise, it sounds like it's giving the option of either standing or jumping. (But I know that's being rather pedantic.)

The context of a pool doesn't help!

It could mean do not sit and push yourself
into the water e.g from the side or from a diving block or board. Then it would be safer to stand and jump.

If they want to say do not sit, do not stand and do not jump then it should say "Do not sit, stand or jump".

I'd be tempted to take a marker pen and change the comma to a full stop, and change the 's' of 'stand' to a capital letter, so that it reads, 'Do not sit. Stand and jump'. Then quietly watch and see how many people obey. 😀

It's almost certainly meant to be - 'Do not sit; stand and jump'. As a PP said, related to diving in, perhaps.

'Do not sit, stand or jump' works grammatically but makes no logical sense! What set of actions would require you di something other than sitting, standing or jumping? 😂

Instead of the semi-colon, it probably needed more words eg 'Do not sit while on the diving board. Stand and complete your dive or jump'.

I would think it means do not sit, DO stand and jump. I don't know why it would mean that at a swimming pool. But if you can't sit, stand or jump, what can you do? Is it just a no go area unless swimming past it?

Where exactly is the sign located, because otherwise it's hard to conclude whether 'or' instead of 'and', a comma after 'sit', or something else entirely is needed! Is it not an official printed sign? Those are normally fairly clear.

If you cannot sit stand or jump in this place what can you do? Lie down? Levitate? Do cartwheels? If it’s a list of things you can’t do, it needs to be complete. If it’s an instruction it needs better punctuation and clearer direction.

Well you can't start jumping when you're sat, you have to stand up first.

It's very odd though if it's a genuine question.

It means "do not sit" because you should "stand and jump" - presumably off a diving board if it's at a swimming pool. They don't want people sitting on the diving board or pushing themselves off from a seated position. People should dive by standing and jumping away from the board.

Good answers! There is no diving board.
What they want to convey is, in my opinion:
No sitting or standing on the pool's edge. No jumping or diving into the pool!
Yes, this is genuine as I am staying at the place with the pool.

Sitting and/or standing at the side of a pool aren't bad things to do though?

The jumping is bad depending on depth of pool and size of the pool.

I'd be quite annoyed to be told off for sitting at the side of a pool. Or standing at the side of a pool. You might be doing either as part of getting into said pool!

I'd be quite annoyed to be told off for sitting at the side of a pool. Or standing at the side of a pool. You might be doing either as part of getting into said pool!.
I'd be annoyed as well. Especially if I was supervising DC who were in the pool and I didn't want to go in myself.