It can be hard work correctly estimating the right dosage to get them to sleep.
We found early in the peace with wild bulls that it was always best to land away a bit and always on the downwind side with the exhaust pointing further downwind. Reason? the noise will mask the drug and they may be fighting the drug because of it.
If you walk up to them when they are still fighting the drug they can get up and charge.
A very funny story happened as such one day when a pilot walked up, there were three machines there (lots of noise) and the target a scaly old cow with a good set of racks took off after him.
Well, everyone else fell about laughing while he hot footed for the nearest tree a very slender stem some distance away and the old cow jess can't catch him - hooking at him all the while. T
The Pilot steps in behind the tree and the cow tries to follow and falls over. (no balance because of the drug)
So everyone figured its the same as running away from a crocodile, always step sideways and they can't follow you?
