Most of the time I dont give up easy, I did have a really bad day a wihle back though. Lit up a juan lopez (isom) and tasted like sour grass, tried at it for about 5 mins, and couldn't take anymore. Went up and got a jose piedra cazadore, had about the same reaction and was like sucking through a cardboard tube, no resistance whatsoever. Went up and got a CAO black, had a bad cut as I couldn't find my real cutter that morning, started coming apart so I tossed it. Went and got another, finally got a decent gar with a decent cut. Didn't taste great but it tasted ok (loved the first one I had). So I decided lets bring out the big guns, its a nice day and I want to really enjoy a gar. Busted out a VSG beli and lit it. Had a sour awefull burnt taste to it. I couldn't believe it. Sucked on that thing for 10 mins, tried letting it go out and relighting after that, nothing could fix it. 10 buck gar, barely over an inch smoked and I dropped in in the ashtray with 3 other unsmoked gars.
Thats a bad day and after that I finally gave up.
But in most cases ill give a gar at least halfway unless its really bad.