This is a novelty lie detecting tie that is worn tightly around the wearer's neck. When heart rate increases in relation to the telling of lies, the pointed end of the tie will move off-center. Also sweating will cause one layer of fabric to shrink causing the same effect on tie mechanics.
-- rcarty, Mar 26 2013

Yes, and pants that burst into flames...
-- xandram, Mar 27 2013



random, halfbakery