After 1, Goya's torpedo got caught in the ceiling. After 3, Tama got wet, so pets are subsequently banned. After 4, Naka's singing made it unbearable, hence the sign. After 5, drunk Takao, so alcohol banned. 7 is when the torpedo (from Goya) was about to come off the ceiling. 8 is when said torpedo got dislodged. Probably weakened the support. Don't know what that extra sign is for. 9 is when the ceiling is starting to come apart.
And then 10 is when the bath house becomes unusable...
