Yes, it doesn't get more covert than painting a body and hiding it in an everyday city scene... whether that's sitting on a bus, standing by a taxi, or erm, lying among the fruit and veg on a grocery stall.
The photos were taken around London - the veg stall is part on Portobello market, in case you're wondering - and they really are more impressive than your average painting-a-tiger-on-a-child's-face-at-a-summer-fair sort of bodypainting. But don't just take our word for it - take a look at our slideshow below.
All images: TV Channel Really, <i>Covert Affairs</i>
Covert Affairs starts on Really on 19 September - just make sure there isn't a bodypainted person hiding on your couch when you sit down to watch it...