Originally Posted by
ypqRD
I know this one. The screeners are not trained to estimate the volume of liquid/gel in a container accurately. Therefore the restriction has been placed on the container. This frees the screener from needing to know if you have more or less than 100 ml in your 200 ml container.
It is occasionally necessary to make a rule that is possible to enforce rather than a rule that is all about safety. And remember, the 100 ml is genuinly about safety - with 100 ml of each of your ingredients a person has made an explosion on a plane, but it was a small one, the plane landed and only 1 or 2 people died. Hence the limit. Now I actually think it's dumb as heck, but I understand where it comes from.
I actually also know the reason, but I'm trying to make a point. I have a lawyer friend who asks his clients how they feel about being tried by 12 people who are too dumb to get out of jury duty. The same applies to CATSA screeners. How do you feel about being screened by a someone who is too dumb to estimate the amount of toothpaste in a partially-used tube?