BFT (beak file time)

Tonight it again was BFT (beak file time) for Tommy. The last few days he isn't very coorparative and when I try to "open his upper beak" he can bite me very hard so now I use a glove. Tonight I tried to push a bit with dump and finger on the "beaky contact points" so that he somewhat opens his beak a bit better. pffff... what a job... knowing that I have to do this the rest of his life, I really hope in the near future he will accept it more and more...After that he gets a treat and he is back being sweet to me again...