People (I'm in the US) are pretty much always astonished to realize, when I ask them to say the word "important", that they more often than not will pronounce zero of the T's in the word, when I point out that they didn't.
It always really stuck out to me as a kid when Shawnee Smith (probably most famous for the Saw movies now), on the old sitcom Becker, would always enunciate the T's in that word—that's what made me realize how weird it was that everyone wasn't saying it that way, lol.
To make that joke? No.
To make the joke, having already decided to make it, as funny as possible? Yes.