well if you guys want to really know , i've fallen threw 2 ceilings.one at my brother-n-laws.told my sis that i thought he was going to kill me for it. when he got home from work.i was hanging there from the rafters.my sister had to come get me down. shoot i was scared to deah. but he was cool about it, & said not to worry about it. the second was in an old house i was rewiring. asked the owner where i should step, he said there should be ok.it wasn't! we both got a good laugh out of it later, but right then i belive we both wanted to run & hide.