Sometimes we really don't think things through before acting. While it sometimes works in our favor, many times we end up with situations like this. But it is clearly not limited to humans. Animals are curious creatures, and love exploring new things. Cats especially have a habit of putting themselves in various strange small places for no apparent reason, and this cup is just one reason why, they should definitely think first. But check out even more animals who have gotten themselves stuck, in various compromised positions. Maybe show it to your pet, so they might learn where others have fallen.