system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do we find people's misfortunes like tripping and falling funny?
gpt
Research has shown that the brain releases small amount of pleasing chemicals when a human sees something that fits their expectations. However, the brain releases even more pleasing chemicals when a human sees something that the exact opposite of their expectations. This is what we call "funny."

It is funny to see someone trip and fall because we all try so hard not to trip and fall all the time.