Another random item I'm eyeing was a FLIR camera for my phone. Then there's this question and answer thread on Amazon: https://www.amazon.com/ask/questions/TxK0WIM7GJIJDA/ref=ask_dp_dpmw_al_hza

Quote

Can it detect golfers under the lawn?

> No, but I think you have bigger problems if you have golfers buried in your yard.
> Check me if I'm wrong Sandy, but if I kill all the golfers, they're gonna lock me up and throw away the key
> I tried golf once and hit the wind mill and gave up golf forever