Was in a loft above bedroom being redecorated at that point in time....not much space and getting cramp, saw piece of chipboard, which I placed between the joists to sit on, wiring up a ceiling fan, chipboard snapped in half after a minute or so when I re-positioned myself. Needless to say I heard a 'what the **** are you doing up there?!' I pulled some rockwool away only to see an angrily irate painter looking at me through an arse shaped hole in his lovely painted ceiling and dust everywhere. oops, luckily it was laughed off and forgotten about.....eventually