system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do dogs hump things that are not dogs?

Can dogs not tell they are obviously not humping another dog?
gpt
The same reason humans hump any manner of stuff. They're horny and just want to climax. Sex is not always about procreation. Dogs and humans have been living together for quite a long time, so things can get a little weird on occasion.