Personally I trained everywere but couldnt get a mime but one day i decided to train my prayor levil in chaos alter in wild i was there for and hour or two the weird thing was every 10 min i got a diffrent random event including old man, maze,highway man and mime my freind said you could only get mimes from fighting and thats pretty weird i wasnt fighting anyone so im not sure if the bones trigger something that gives a higher percent of rando events but i got lots of stuff from them....