Different line of work/sport but i train my canine in 3 languages and also hand signals. The hand signals are only used when audible isn't needed at times and close in work. I joke around about them being multilingual but English is used as daily engagement/etc. German is used in sport and another language for serous work. When i had labs for field work i used hand signals,English for daily task and redneck for hunting.


“Discipline is the refining fire by which talent becomes ability “—RLS