system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why and how does water get trapped in your ear and why is it sometimes difficult to get the water out?
gpt
Water is sticky. It sticks to itself and other things. This allows it form thin films in enclosed spaces. The tiny hairs in your ears can support the film making it stand up against gravity. So in the right conditions water will essentially form a "bubble" trapped in your ear, supported by the tiny hairs in there.