One month ago I was taming my first giga, when I almost knocked it out someone jumped out of a bush and quickly knocked the giga out so he could tame it, so i knocked him out, 1 month later he's still in my cage as a prisoner.
Ways to tame:
1. Run and die
3. Be prepared and still die
4. Run out of stamina on a flyer above one... And die.
5. Somehow manage to get it to fall asleep... Then run out of narcotics and die.
6. Sacrifice all your Dino's and still die