TIL about anti ninja floors in Japan. They were purposefully made to squeak as to alert people of intruders. science.howstuffworks.com Submitted by tpb01 t3_yf8hvz on October 28, 2022 at 12:32 AM in todayilearned 187 comments 5,566
coyote-1 t1_iu2bxf3 wrote on October 28, 2022 at 1:01 AM As has been the case across the globe for centuries. It sucks to have squeaky floors; it sucks more to have no warning of the intruder coming to commit mayhem. Permalink 5
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