(Since it says ½, I was waiting a while to see if anything else was sent, but since this doesn’t seem entirely left off, hope you don’t mind if I reply to it now.)
As someone who writes Kaito, I unfortunately can’t forget that little quirk of his… Too distinct of a detail to push out of mind. I mean, it would have an impact if Gosho ever decided to actually bring it out. It doesn’t have to be used for a gag, that sort of problem could make for an interesting heist or any situation where he has to push that discomfort aside so he can do whatever is needed at the time. Really… originally, Kaito didn’t want to step foot in the ocean until his life was at stake, then Kid’s first appearance in DC he has to hop off a boat to not get caught, and all that’s mentioned then is that he caught a cold afterward.
And it really is too bad the gag-based parts are pretty much gone. I’d be willing to bet that it’s because of the shift in style and tone that earlier manga chapters are still glossed over when it comes to adaptations. Keep the ones that an be fun and comedic, but still in line with the more dramatic and serious tone of the plot. Robot, pirate, prime minister being ‘kidnapped’ might have other issues in putting it on TV, but still… Both adaptations decided to get to the org quicker than the manga did, and I do feel like it’s because they feel the plot was needed to keep interest in the series, instead of the more episodic adventures of a teenage kaitou in general.