Haha, I can relate, did so this weekend, on my belly in attic fishing a wire, goes through, and in my excitment to go downstairs I miss a joist and put my foot through the lath and plaster cieling *crack* although I could NOT believe how lucky I was, the cieling had another cieling laid below it-acoustic tiles on oneXtwos, so my size 14 boot only went through the non-visible part of the cieling *phew*