I carried my old Praktica FX2 through my years in high school to take candid photos for the school yearbook. Since I didn't have to put the camera up to my face my 'victims' didn't know they were 'had' until the 'THWOK' of the mirror flipping up and the cloth shutter flying... (the top cover opened to a small view screen, viewed by looking down at the top of the camera.), In school, I used either the Praktica's original 50mm f2.8 lens, or I'd 'borrow' one of my dad's screw mount (Pentax) lenses (usually the Vivitar 85-205 zoom) or occasionally the 500mm fixed...
I later carried it on the rear Pletscher rack of my old Fuji S-10S on several TOSRVs 1977-80, just in its original case inside of a plastic bag, and then wrapped in my spare sweats. Then 1981 I opted for a 110-format pocket camera for that year's TOSRV (terrible, grainy photos)...
After years of abuse, the shutter started getting a bit lazy, so sometime around 1990 I gave it to one of my co-workers who collected old cameras