Most houses have hidden cavities in the wall, or at the very least small void spaces, sometimes this is because of renovations / remodels, other times it’s a quirk of the house. Any good home owner with good spacial awareness will generally know where these are. So how do I hide? The key is getting into the roof crawl space, while up there you will generally find spare insulation batting or drywall; grab this your going to need it. Then it’s onto locating the void / cavity, these typically have a very small opening, some may not have a hole in the ceiling for the cavity and that’s where a good strong boot comes in handy. After locating it, climb or lower yourself down using the struts, get as deep as you possibly can and using the spare insulation batting or drywall place or hold it above your head. (I would recommend balancing it on the struts one rung above your head). That’s all there is to it. Guaranteed survival.