Laughing Gas jokes

My mom said the happier a person is when sick, the sooner they get better.

So I went to the hospital, hooked up everyone's breathing masks to laughing gas.

Stop making these stop jokes. I'm running out of laugh gas.

If Hitler was a comedian, he would use laughing gas.

What happens if you inhale too much nitrous oxide (laughing gas)?

You die of laughter.

I've just started a new business making people breathe in large amounts of helium. They all speak very highly of it.

If a king farts, is it a noble gas?