Doubtful it was me (even though I was in the area). Pretty sure you would have said Valk Trike had that been what you saw. Was out on my trike and had my tag-a-long trailer behind it.
Rams
Does a body fit in that trailer? (asking for a friend)

Sure but, I will admit to being curious about the request for information.
I just transported a borrowed table saw. It was too big to fit inside the trailer but strapped down fine on the top rails.
Sure, just break the legs.

da prez
Not necessary if one uses bungie or bike straps to secure the load.

I was just inside it drilling out some busted rivets on the piano hinge, to get it to line up correctly, I had my loving wife shut the lid. Won't call it roomy but, yes a body could easily fit inside. Mine did.

Rams