Don't just put it in your pocket, ive heard of people being forced to empty their pockets before going in,
This is correct. DO NOT HIDE the QF bottle in any external pockets since the collectors, abiding by established protocol, will have you empty those pockets.

I often kept my QF bottle (with heat pack) stashed in my swimming trunks inside "key pocket" near the tie-cord. Then I slip on a pair of dress slacks over the trunks. The looseness and dark colored nature of the dress slacks did a great job of concealing unwanted "bulges" . :thumbsup: