JOHANNES HENDRIK VAN DYK
No, not in total.  The teargas has a different effect on different people.  I have seen in my career people walking up to a teargas grenade, where they have picked it up and thrown it back to the police.
	I myself are heavily effected by teargas, but some people are not that severely effected.  It is a burning thing, it is a powder that burns and you would have people actually picking it up and throwing it back at the police not effected at all.