So my friend and wife were out in the Mojave desert 4 wheeling. They seen a wild burro about 60 yards off the road. She gets out of the jeep to take some pictures. As soon as she exits the jeep he starts in with honking and making a fuss. They do this a lot as a warning. She stood in front of the jeep. As soon as she raised her camera her he comes at a full run. She quickly got back into the jeep. The burro came within 10 ft of the vehicle. I've walked around the desert with just a 22lr for plinking. Now if you were hiking and didn't have a vehicle to escape to what would you be packing. I think they have a rock hard head and weigh around 400 lbs.