When Thor returns, his friends have aged and grown frail. He requests a battle, himself against them, for old time's sake. Bruce only smiles and says, "We're too old." When the Lady Jane hugs him, he thinks: she would break so easily.
This angers him. New heroes greet him and he is curt with them. He spars with one, breaks the man's legs and isn't sorry. What does it matter? In fifty short years the mortal will hardly be able to walk.
"You are insects," he finds himself thinking. "I fought my own brother – for you?"