Imagine a very drunk James Potter determined to destroy the giant squid after Lily said she wouldn’t go out with him if it was a choice between him and the giant squid.
Because Padfoot, it has to go. I can’t have the Giant Squid as my competition. It would swallow me whole and I’m too fit to die. Also I don’t plan on dying before I get Evans to say yes. Now help me carry this cauldron of sleeping draught to the lake.
And of course Sirius shrugs and just goes along with it and Remus is just watching them from a distance, wondering what it might be like to be friends with people who weren’t completely off their rockers…