My favourite part in Order of the Phoenix is when Harry and Sirius are playing hide and seek in the Ministry and Sirius is being silly behind the veil then he jumps out at Harry like “Haha found you!” and then they laugh and high five and go out for ice cream at Fortescue’s.
think about clint barton reacting to the fact that 13 year old kate bishop in the ultimate universe is apparently hydra ??