> One way they beat IR was to get behind a
> pane of glass (but I already knew that
> one). BTW, that's new glass, some
> really old glass will pass IR.
>
> Rather than walk around holding up a
> sheet of glass, they put a small piece
> on a rod, and hung it over the detector.
> That was actually quite clever.
>
> I recall a documentary once where the
> thieves beat the IR detectors in a
> warehouse by building a wall of boxes
> (TVs fridges etc), like you said. Once
> the wall was high enough they could do
> what they pleased behind it.
>
> They knew the building layout though.
Freezer suits will give you a few minutes
immunity to IR detectors. Just long enough
to put it on, run around with some paper
and sticky tape and cover all the sensors
up.