My friend was eating cereal at the table and blew it everywhere upon the sight. Good times.
On more than one late night, he was forced to come and whisper yell at me and my cousins along with whatever friends happened to be there as well to quiet down. Anyone who didn't live there found it hilarious to no end. It only served to energize us, rather than the intended calming effect.
At 10 it was pretty difficult to take seriously anyone with wild bed hair and a bare ass, or cartoonish underwear for that matter.
I still giggle 25 years later picturing his angry silhouette sauntering away mumbling under his breath.
I don't really have an issue with my own body and do everything I can to instill body positivity within my kids. On the other hand, I think it's important to be considerate of their wishes, and recognize while it's perfectly natural (i.e. not "bad"), that doesn't mean it's pleasant. I'm American after all... lots of lumps, loose skin, and hair where it doesn't make much sense :)
I am slightly scarred by memories of the sudden and unexpected emergence of a nude parent.
This seems to be a very cultural thing too... growing up in Europe I saw my parents/grandparents/aunt/uncle naked plenty of times while I was at home or staying over with my cousins. Nudity around family was normal and expected.
This led to being more accepting of ones own body as well and not necessarily seeing nudity as intrinsically linked to "bad".