1. I also always wondered how he got the uniform, truck, etc.
2. I think Eric is wondering how Hanlon got there so fast since he just spoke to him on the phone, and Hanlon told him he was at the stadium.
4. I never noticed that, but bugs, rodents, snakes, etc. would get in, too. Yuck.
6. I always wondered what those colorful things were, too. They remind me of cattails.
7. I think when Columbo noticed freshwater was spra*** on the deck, like something was covered up, that was the moment it became a murder.
8. Yes. Or at least into the idea of mani****ting her for his own purposes.
11. I think that it means that Eve Bab**** would stand out and be somewhat out of place, probably didn't have good secretarial skills, and Hanlon, being as sharp as he is, wouldn't miss (be unaware of) any of this. He would quickly figure out what she was up to, but would also want to use that to his advantage to set up the alibi. I guess I'm not sure why he had to fire her. He would have been better off playing dumb and keeping her there, until enough time had passed and he was well in the clear. She maybe used a fake name (Bab****) that everyone knew when she was working there, but after Hanlon figured out she worked for Dobbs and got to know her, and paid her off to keep her quiet that he was onto the bugs, he learned and used her real name. But like I said, it would have been easier and safer for him just to "play dumb". She probably wouldn't have sta*** there much longer anyway after the bugs were planted, and then he never would have had to fire her, pay her off, and risk her exposing him.