you mentioned in the fic that dipper actually managed to spot octobill first once? how did bill react to that? if you dont mind that is
While I’m tempted to write out the whole thing, the short of it is:
The first time Bill breaks out, all Dipper knows is that something’s escaped, so when he spots motion out of the corner of his eye - he’s just good enough to see that it’s probably a tentacle. Octopi are escape artists, after all, so he goes after it going ‘I see you there, c’mere little guy-’ And pats it, but he doesn’t see the rest of the octopus…
Bill is a guy, but he’s not little. He’s also very surprised anyone spotted him in the first place. He was caught off guard. He had been ambushed.
Suffice to say that is how Dip became Bill’s ‘handler’, and - when Dipper notices what he’s actually caught - also the closest Dipper’s ever come to having a heart attack.