After putting them in a dark room, you have to wait for the photograph to fully develop.
Batman can go in a convenience store without Robbin.
A monster makes bigger holes in the skirting board.
You can't hear a protein. (Wait for it)
Weights
Because they have developed very good punch quality.
If you leave yoghurt alone for 2000 years it'll develop a culture.
Because they can't even.
A school shooter
Only one. But they have to sit in the dark room for a year, first, to make sure that the lightbulb is out.