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
sandtymanty t1_iu2c4yt wrote on October 28, 2022 at 1:02 AM Anti ninja beds are squeakier. Permalink 8 MMachine17 t1_iu2xjbz wrote on October 28, 2022 at 3:53 AM They are the easiest method to detect human mating. Permalink Parent 2
MMachine17 t1_iu2xjbz wrote on October 28, 2022 at 3:53 AM They are the easiest method to detect human mating. Permalink Parent 2
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