The mind is very powerful. Whatever the eyes are seeing, the mind interprets. Your eyes can see something where there’s nothing; it’s simply the trick of the mind. It’s also possible to see an utterly harmless picture and think it’s something entirely different.
Sometimes, you wonder if you’re imagining things or you just have a dirty mind, especially when others are not seeing what you see. Occasionally it’s the trick of the light, while at other times, it’s all due to angles. Take a look at these innocent photos that’ll have you thinking twice due to sheer illusion.