lol i always say yes, why not? theres no need to be paranoid - (obviously you gotta say no to certain people,) i remember a little while back me and a couple friends got stopped by a random policeman, we had literally JUST stopped smoking, and it was obvious we had been smoking it because we all looked completely fucked and it stunk like weed lol, he asked me if we had been smoking cannabis, and my friends were gonna try to deny it, so i was like 'yes sir, yes we have' - my friends shit their pants lol, then the guy told us he used to do it with his friends when he was young, and said he wasnt gonna bother doing anything about it, he told us not to do it in public places and we agreed we wouldnt, then he told us to move on and went on his way, of course, this was a strike of luck... DO NOT TRY THIS AT HOME!!! lol