Yeah, you would definitely notice big ones if they were in the house.
The only exception for me is Huntsmans they can get big but they are fast, can jump and takes a lot of fly spray to take them down. (Normally, I try to take some Bugs and Spiders outside but too risky with them.) They are cool looking, though. And I held a "Use to being held one" Spiders and Snakes are more not tame but used to being held kind of thing when they are Pets.