[ed_elliott_asc]

There was a tv show in the uk where they used them to prove/disprove infidelity - I think it caused people to actually break up.

[giles_corey]

On the Jeremy Kyle show, the lie detector drove one guest to suicide (which led to the show's cancellation):

https://www.telegraph.co.uk/news/2019/05/22/jeremy-kyle-gues...

[adriveatrain]

The show (Jeremy kyle) was taken off air because someone who failed the polygraph committed suicide.

https://www.telegraph.co.uk/news/2019/05/13/jeremy-kyle-take...