Talk:Piggybacking (security)

Volume
Alternatively, a Gatekeeper system can be used which applies photonics technology to measure the volume occupied by one person; two persons occupy a larger space and as such are not allowed to enter.

This seems too simple, there are people who have the volume of two or more ordinary people. So this volume thing should be explained more in detail --MrBurns (talk) 05:25, 23 February 2015 (UTC)

I made a ref crash
help!!!!!!!!!!!!!!!!!! Artmaker12 (talk) — Preceding undated comment added 21:11, 23 May 2021 (UTC)
 * Fixed. You had removed an end > David notMD (talk) 00:22, 24 May 2021 (UTC)