Humphrey The Blue Shar Pei - First Training day

Hi, i went for my first day of dog training yesterday....it was a bit scary, mum kept saying its your first day at school ! the teacher said im a bit stubborn and wouldnt do as i was told. But all i wanted to do was play with the other dogs...although there was a Rottweiler there called Tiny, i dont like them because one tried to hurt me when i was very small....But mum said not all Rottweilers are the same and i should make friends with Tiny....but i dont want to !!