Specific Phobias
It is a cruel sort of irony that the Google search results for most phobias contain images of the very trigger of said phobias. If you have a particular phobia, you’ll really want to avoid searching for it. But you may want to avoid these searches even if you don’t.
Take trypophobia, for example. Basically, it’s a fear of holes. But the Google image results for this particular phobia are packed with pictures that can gross out or unnerve just about everyone. You don’t need to add a new phobia to your life, so just avoid it.