This wouldn't happen here

Nope. We wouldn't have a group of students gathered around a computer in the library conducting a little experiment to find out which words in the English language are the most "innocent," i.e., the least likely to provoke unsavory associations and sexual innuendo. No siree. And any such students sure wouldn't use Google Images (with SafeSearch turned off) in the library as their variable in making this determination. In no way would these hypothetical students find out that "library" and "optometrist" rank pretty high on the innocence scale. Or that "librarian," on the other hand...

Nope, not here.