What’s your earliest memory with a microscope? When I was a kid, me and my younger brothers were gifted one of those all in one microscope set. You know, the one where the tweezers that were included always broken with in today of using it. Any ways. While bathing our dog, we caught a flea. Nasty, I know. Despite being creeped out we still put it under the microscope. I still remember how grossed out everyone was.