Meet Cason. This is the face he makes when he spots his baby brother on the floor ready to be tackled.
This is Colt. This is the face he makes when he sees his big brother approaching.
Sometimes I feel bad because I think Colt daily fears for his life.
In case you were worried, Colt's face isn't permanently stuck like that. He really is quite cute, and he does relax his jaw on occasion.