1) There is, but only up to about 5 seconds or so. Any longer is useless.
2) The weed may have been decent grade at some point, but if so it hasn't been handled well. Classic middies, which with a lack of tolerance should get you proper stoned.
3)
your guess is as good as mine.
4) I don't think you were "ripped off," but given nun's figures you could have conceivably found a better deal.
So it really didn't get you high at all? Might have something to do with how you're inhaling. The stuff's certainly legit.