As promised - which episodes did these quotes come from?

#1 (said by Columbo): " ....I think my wife was right....something wrong with me. Supposed to be on vacation, and right away I'm thinking like a cop. That's called occupational hazard...."

#2 (said by Columbo): "But that's me, I'm paranoid. Like every time I see a dead body, I think it's a murder... Can't imagine anyone murdering themselves. Especially a young girl like that, beautiful eyes. But that's me. I'd like to see everyone die of old age!"

#3 (said by Columbo): "..I'm gonna tell you something. Do you know that there is a reasonable explanation for everything, if you just put your mind to it? Course, sometimes these things... pop up. Like with alibis. Do you know in most cases, people, they don't remember what time it is...."

#4 (said by Columbo): ".. My wife says I'm the second-best, she claims there are eighty men tied for first!"

This is fun Leighton!

Since you just posted this I will only take one of them.
um.....#2 sounds a trifle familiar.....hmmm.......let's see.........could it be from Etude in Black????

One down...three to go! It's past 10.00 in the UK, I'm sure that the brains of you people in the US will be functioning better!

Ok...I can't resist...I'll do one more.
#4 is from Short Fuse. It is when Aunt Doris and Roger and Columbo are standing at the bar, and she says she called the Comissioner and he had promised to send over "his best man." (I love the way Roddy smiles when Peter delivers this line! )

Ok...I will not be a Quiz Hog...so I will go away now.

Thank you, Cassavetes, for not being a Quiz Hog! (And that's a cute expression!)

#3 is from Suitable for Framing.

#1 is from "A Matter of Honor"

And as already mentioned, #2, #3, and #4 are from
"Etude in Black," "Suitable For Framing," and "Short Fuse"

Thanks E...but I stole that expression from someone on here!!

Ok..Mr. Leighton Sir, we are hungry for more....no pressure!!!

I'm very impressed...and descriptions as to what part of the episode it was said.

I'm just going to have to start making things a wee bit more difficult. I'm on the case...