I already have an idea what the answer is but I wanted to bring this up.
Take the setting of a panel show as an example. one person will be in the middle of a monologue while another will be sipping water. Person A will get to the climax of his monologue and person B will choke and probably spray some of his water.
I guess it shows that what just happened was so funny that the drinker was forced to laugh.
Do you remember the last time something caused you to choke in this manner?
I do, but it was an unfortunate memory: I actually sprayed people in my vicinity
when it happened and they were not amused. Naturally I couldn’t help it.