This image by Sandro del Prete is a surefire way to tell if you have a dirty mind and according to the logic behind it, you're definitely potty minded if you're an adult. Do you see an erotic image of a couple on the jar or the nine innocent-looking dolphins?
According to The Independent, the image you see is a composite of the imagery you've been exposed to. So while kids are more likely to spot the dolphins because they're not heavily exposed to sexual imagery, adults are even quicker to spot the erotica.
Do you have a dirty mind? This optical illusion can tell by Sandro del Prete