Originally Posted by
Flaflyer
What happens when a pax takes a 1 oz hotel shampoo bottle, relabels it "Contents: 5000 US Gallons", and hands it to the JFK dude above in an Approved Kwart Kip Zip?

I bet that the aforementioned dude would confiscate the shampoo bottle because ... how is he supposed to know if 5000 US gallons is less or more than 100ml?
I'm also willing to bet that you could re-label all of your shampoo mini-bottles with words to the effect of "Contents: 99ml liquid sarin" and walk straight past 99% of airport security dudes without any questions. (But be ready for a shower of bullets coming your way when you meet the exception to this rule).

- just so you know that this is intended as humour.