My concept of cold war.
"Hiccup, I would propose rule No.1, Never EVER mess with a girl. Esepcially Astrid Hofferson—”
"But it is her problem this time being plain immature, Fishlegs!”
"Hiccup, you just ate her fried chicken. And you know how she feels about food—”
"Exactly! She’s 20! She should grow up on that!”
"Leave her be, Fishlegs."
…And the rest is history.