My 'pet hate' is museums trying to charge students and scholars to use their own photographs by claiming copyright of an object or work of art.
In the US they cannot even claim copyright of simple photographs of objects or works of art, as this decision made clear:
Bridgeman Art Library v. Corel Corp. - Wikipedia, the free encyclopedia
So this caption rather amused me:
... and of course I'm reproducing the images to make a point that I legally have the right to do so.
Incidentally, a lot of younger scholars also seem to be unaware that unless they specifically assign copyright to someone else, they retain the copyright of everything they write.