Yesturday

I had a funny encounter with one of the guys at the place we are staying. I approached him as he was cooking the dog food, so I tried to say one of the "Rutoro" phrases I learned. "Wayballi Ketchuwmba Embwa"(not sure if it is spelled right) what I meant to say was, "Thank you for cooking to dog food." But he began to chuckle a little. "Thank you for cooking the dogs?" he replied in english.