I will share two, both were tracking type hunts. The first was Cape buffalo, I mean who wouldn't think that was a great stalk! In this case we had multiple encounters with buffalo, never got a shot until day 5 almost got busted by baboons, ended up taking a longer first shot that I imagined I would on a buffalo (ran out of cover). Even with a good first shot, the follow up on a buff is always exciting and this one was no different. He ran off and holed up in the thickest, nastiest brush he could find. In retrospect now I am convinced he was dead when we tracked him up......but I shot him 4 more times anyway.
The second was Eland hunting; after the buff was in the salt we started tracking eland, again we had multiple encounters, passed on one because of a broken horn, and got chased by elephants, but at the end of 8 days I didn't shoot one. Fast forward two years, back in Africa (different country) again hunting eland. On the second to last day on a 12 day hunt my luck finally changed and I shot a very nice eland. Tracking down Eland can be as additive as elk hunting.