One of the films I acted in required my character to end up tied to a tree, stripped of his pyjamas, have blood thrown over him, have his body sliced, and candle wax dripped on his torso and penis.
so I ended the filming naked and pretty messy. We were filming at midnight, on a farmers field campsite, half a mile away from the hot shower. Rather than head to shower, I took a light panel to a nearby pool – walking there naked – and cleaned myself off there. So, only one naked, but the others were too busy relaxing around a campfire to be that bothered! Wasn’t awkward nudity to me though, I’d signed up for the film knowing the situation the character would end up in…. just didn’t think how cold the clean up would be!